Posted 16 September 2012 - 01:31
Instead of blinding screaming either Apple or Android, I thought a break-down might help you out.
OS - This is obviously very subjective. iOS still has a huge advantage in terms of overall smoothness and ease of use, while of course Android has lots of user customization features. However, the smoothness should hopefully be address by Samsung's upcoming "Jelly Bean" update. I own a Nexus 7, and I can say without a question that I wouldn't even touch a Android device that is not running "Jelly Bean." The difference is night-and-day between "JB" and all previous builds of Android. Hopefully Samsung doesn't screw-up their "JB" build too badly with their atrocious TouchWiz skin. I'm not just picking on Samsung there either: all Android skins are pretty awful, from non-Blur to TouchWiz to Sense. LG's is the only almost acceptable one.
Screen - If you want a big screen, then obviously the Galaxy SIII wins. The iPhone 5 does retain other advantages though: higher pixel density and (far) more accurate color reproduction. Glare should also be much better on the iPhone 5 as well due to its in-cell touch panel. So if you use your phone outside quite a bit, you could possibly count that as a plus.
Processor - Stateside the iPhone 5 beats the Galaxy SIII hands-down, but the international Galaxy SIII comes with Samsung's own Exynos 4 Quad. So four Cortex A9 cores versus two custom Cortex A15-derivatives. While the cores themselves in the iPhone 5 are more advanced, having four older ones running at the same (or higher) clockspeed would still give overall more CPU performance. The GPU in the iPhone 5 though will handily beat the Exynos 4. However, I'm not sure if that matters much in the world of Android. I still have yet to find any graphically intensive games in the Android Marketplace (excuse me, Google Play now) that come anywhere near to titles like Infinity Blade on the iPhone.
Battery Life - I would expect this to a tie between the two. Moving on.
Camera - I'm not a photographer, but considering most websites still put the iPhone 4S ahead of the Galaxy SIII in image quality comparison tests, and the iPhone 5 is better still, then this category should be an Apple win. iOS 6 adds a couple capabilities that use to be missing, such as panorama shots and taking pictures while recording video. Camera quality is possibly the strongest feature of Apple's no-longer flagship iPhone 4S actually. It looks like Nokia is going to give them a run-for-their-money with their Lumia 920 though (fake demos notwithstanding) and I eagerly await to see who comes out on top in that head-to-head battle.
Build Quality - I would think most people will agree with me here the iPhone is unsurpassed in terms of pure build quality. The anodized aluminum in the iPhone 5 is just in another league compared to the glossy plastic in the Galaxy SIII.
Durability - I thought this needed a separate category from build quality. While the iPhone 5 will no doubt feel and look much nicer, I also am pretty sure it will (still) break far easier than the Galaxy SIII. If you drop your phone a lot, then this should definitely be considered.
Price - Couldn't comment on UK prices, but here in the States this would be another tie. $199 for either the iPhone 5 or Galaxy SIII with a contract renewal, with a slight difference in off-contract prices: $599 for the Galaxy SIII and $649 for the iPhone 5.
Hopefully I helped you a bit!