Here we have made comprehensive comparison of the smartphone released in last few month, but we are not giving any verdict on them though it is pretty clear. It is on you all to judge it by yourself. Do let us know what are your opinions.
     

	Appple iPhone 5	SAMSUNG GALAXY S III	Nokia Lumia 920
OS	Apple iOS 6	Android 4.0.4 Ice Cream Sandwich (upgradable to 4.1 Jelly Bean)	Windows Phone 8
Display	4-inch LED-backlit IPS TFT	4.8-inch HD Super AMOLED w/ Corning Gorilla Glass 2	4.5-inch PureMotion HD+ w/ Corning Gorilla Glass
Pixel density	~326 ppi pixel density	~306 ppi pixel density	~332 ppi pixel density
Resolution	1136 x 640	HD (1280 x 720)	HD (1280 x 768)
Height Width Thickness	123.8 mm 58.5 mm 7.6 mm	136.6mm 70.6mm 8.6mm	130.3 mm 70.8 mm 10.7 mm
Weight	112 grams	133 grams	185 grams
Processor	Apple A6	1.4GHz quad-core Cortex A9 processor Exynos 4212 Quad	1.5GHz dual-core Krait processor Qualcomm MSM8960 Snapdragon
GPU	-	Mali-400MP	Adreno 225
RAM	TBA	1GB	1GB
Storage	16GB / 32GB / 64GB	16GB / 32GB / 64GB	32GB
microSD card slot	No	Yes, up to 64GB	No
Primary camera	8 MP, 3264×2448 pixels, autofocus	8 MP, 3264×2448 pixels, autofocus	8 MP, 3264×2448 pixels, autofocus
Primary camera extras	Touch focus, geo-tagging, face detection, panorama, HDR	Simultaneous HD video and image recording, geo-tagging, touch focus, face and smile detection, image stabilization	Carl Zeiss optics, optical image stabilization, autofocus, dual-LED flash, PureView technology, geo-tagging
Front camera	720p	1.9MP 720p@30fps	1.3MP 720p@30fps
Battery	-	Li-Ion 2100 mAh	Li-Ion 2000 mAh
Wi-Fi	Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Plus Cellular	Wi-Fi 802.11 a/b/g/n, DLNA, Wi-Fi Direct, Wi-Fi hotspot	802.11 a/b/g/n, DLNA, Wi-Fi Direct, Wi-Fi hotspot
Network	2G Network GSM 850 / 900 / 1800 / 1900 CDMA 800 / 1900 – for Verizon 3G Network HSDPA 850 / 900 / 1900 / 2100 CDMA2000 1xEV-DO – for Verizon 4G Network LTE 700 MHz Class 17 / 2100 – for AT&T LTE 700 MHz Class 13 – for Verizon	2G Network GSM 850 / 900 / 1800 / 1900 3G Network HSDPA 850 / 900 / 1900 / 2100 4G Network LTE (regional)	2G Network GSM 850 / 900 / 1800 / 1900 3G Network HSDPA 850 / 900 / 1900 / 2100 4G Network LTE 800 / 1800 / 2600 / 900 / 2100
USB	Yes, proprietary 9-pin connector	Yes, microUSB v2.0 (MHL), USB On-the-go	Yes, microUSB (MHL) v2.0
Bluetooth	Yes, v4.0 with A2DP, EDR	Yes, v4.0 with A2DP, EDR	Yes, v3.1 with A2DP, EDR
NFC	No	Yes	Yes
Sensors	Gyroscope, G-Sensor, Digital Compass, Ambient Light Sensor, Proximity Sensor	Gyroscope, Accelerometer, Digital Compass, Ambient Light Sensor, Proximity Sensor	Gyroscope, G-Sensor, Digital Compass, Ambient Light Sensor, Proximity Sensor, Barometer
Availability	September 21	Currently available	Expected release 2012, Q4

Article Source: http://blog.gsmarena.com

We have already posted some of the important information related to iPhone 5 earlier. These posts will helps you to decide which way to go and what you should be expecting.
 
In the articles below you can find the comparison videos of the rumored design of the upcoming 'iPhone 5' to the Samsung Galaxy S3. So if you have still not decides which phone to buy you might be able to makeup your mind from here.

Here you can find the comparison of the rumored design of the upcoming 'iPhone 5' to the Samsung Galaxy S3. So if you have still not decides which phone to buy you might be able to makeup a mind from here.

Note: Tested on jailbroken 2.2.1 3G

iPhone and Android users, feeling left out of the Windows Phone party? Fear not, for Microsoft has now launched a Windows Phone emulator which runs a browser-based demo on competing mobile operating systems.

Flipboard, the first and most successful social/personal digital magazine for the iPad, is now available for the iPhone. But is it any good?The short answer is yes. It’s good, but it’s not a carbon copy of the iPad app, it’s a re-imagining of the iPad app for the smaller iPhone screen.
Flipboard works by pulling in articles from your Facebook, Twitter, Tumblr, Flickr, Google Reader feeds and then reformats them into a magazine. The idea is to create a magazine tailored to your personal interests, based on what you share and read across social media sites. It’s clever and intuitive.

As it happened, there was no iPhone 5 after all, but the company did announce the iPhone 4S. However, the iPhone 5 is still on the cards - we're expecting it to debut in mid-2012.

iPhone 5 release date
Given the pattern of Apple's iPhone launches, we're expecting the next-gen iPhone 5 to debut in mid to late 2012. We reckon it's most likely to be shown off at Apple's Worldwide Developer Event (WWDC), which usually takes place in early June.Rumours that we reported on 18 October claim an iPhone 5 release date of Summer 2012. Analyst Ashok Kumar claimed that the absent iPhone 5 was meant to be the big announcement at the recent event where the iPhone 4S was launched.

Today, Google announced its latest app, a content news reader for Android phones and tablets (and iOS) called Google Currents. Google Currents lets you explore online magazines and other content from your device in a whole new way. You can think of Google Currents as a direct competitor Flipboard, the popular RSS reader for iOS.

Folks, you read it right! It’s finally here; H1Siri is the first service making Siri porting to the public free of charge. You can install Siri on your iPhone 4 and iPod touch right now and get it fully ported and connected to Apple’s servers. Just follow our full step by step guide shown below.
This full port of Siri is made for iPhone 4 GSM & CDMA versions and iPod Touch 4G only. Other devices are currently not supported.
If you have previously installed a jailbreak tweak known as “Siri0us” which installed Siri dictation on iOS 5 devices, it’s better to remove it to prevent crashing and conflicting.
The guys known as CD-Team developed a tweak called “H1Siri” which brings Siri’s GUI and Siri connectivity to the team’s own servers. Siri will not be connected to Apple’s servers, instead, it will be connected to private servers.

Siri has been ported to older iOS devices, including iPhone 4 and 3GS by well known hacker chpwn and stroughtonsmith.

Is Siri poaching Internet searchers from Google? That's what The Arora Report's Nigam Arora suggested Monday, citing a "small study" he conducted to "validate the hypothesis that users of Apple's Siri are reducing Google searches."
When Arora says "small," he means it. The unscientific survey of 40 Siri users is anything but conclusive, but there's certainly a lot to chew on—not the least of which is the notion that with Siri on the new iPhone 4S, Apple may just have inserted itself into the search game with an end-around that few people saw coming.
Twenty-seven of the Siri users Arora polled said they hadn't done a single Google search since buying their iPhone 4S. The remaining 13 had conducted two Google searches on average since welcoming Siri into their lives. And "[a]ll 40 users of Siri report that they see no need to go to Google if Siri can answer their question."
Arora's informal study offers some perspective for Google chairman Eric Schmidt's recent claim before Congress that his company is not "overwhelmingly dominant" in search. Schmidt contended that Google faces a number of serious search competitors and even singled out Siri as a "significant development" in the search arena.

The new Apple iPhone 4S can do more than just check e-mail and make phone calls. It's also turning into a new — sometimes sassy, often entertaining — digital friend for millions of consumers.
The most touted new feature, the Siri personal digital assistant, has, hidden in the software, dozens of humorous responses to silly questions.
Consumers are asking Siri for dates, marriage, advice, math equations and even crazy stuff like where to hide a dead body.
To their surprise: Siri usually has an answer.
On an upcoming Talking Your Tech: QR codes, use 'em or lose 'em? Those bar code-like images that can be scanned with your smartphone are popping up everywhere. Share your thoughts about them for a chance to be featured on USA TODAY.
Comedian Stephen Colbert opened his Colbert Report Tuesday night on Comedy Central asking Siri, in jest, to write his show for him. Musician Jonathan Mann wrote an online duet this week with Siri, which has burned up the YouTube charts so far with more than 400,000 views.

Apple said Friday that it was still trying to resolve battery drainage issues in the iPhone 4S, despite a patch released earlier this week that was supposed to fix the problem, according to AllThingsD.

The age old questions remain: What’s an untethered jailbreak? Why is a tethered jailbreak undesirable?
What’s a tethered boot? Why does my iPhone keep rebooting over and over after jailbreak?

If you’ve ever asked one of these questions, or you’re still looking for answers, then step inside to learn, and contribute your knowledge to the discussion…