rex, if it matters to you, the iphone 5 easily has the best camera out of those phones. that's something that doesn't show up if you just look at specs. and in turn, the lumia 920 has a camera that's much better than the iphone 5, esp in lowlight situations (restaurants, bars, nighttime scenes) and video, esp when you might be walking around or moving.
i'm sure no one will believe me based on the looks of pity i'm getting here π, but quadcore android is not faster than dualcore wp8. i have a singlecore wp7 phone from htc and i hardly notice any performance difference with my friends' quadcore androids. plus, i've literally never had to hard reset my phone or have my phone crash on me. remember being surprised when i first found out that happens to people.
apps are the only weak point of wp8 - it doesn't have eg, instagram or draw something yet. but fb and twitter are integrated - you get all your updates from one place. nokia maps is at least the equal of google maps, and is def superior to apple maps in every way, esp in sweden. you can also d/l maps of entire countries for offline use when you're on holiday.
also lumia 920 has wireless charging. it also has NFC, which you might've seen in samsung ads. you can tap phones to exchange contact info or music, or tap a spot on your office desk to goto silent mode and wifi, or whatever else you can think of.