I've got the Lumina 920 as I was given one pre release from work. Look Windows phone is good, its a sick interface and the hardware in the 920 is great. I actually find it syncs everything much better and I saves me heaps of time. That being said, I would probably just go and buy an iPhone4s, the five is nicer but I've heard too many battery complaints and I don't think the difference between the two models is huge. I find that if your not going to be needing to keep track of meetings and use office on the go, ios is stable easy to use and reliable. Android is clunky as fuck and looks like total shit, but the HTC One is hardware wise such a decent phone and if I didn't hate android I would be getting it. MS app store while its safe, tested and growing so fast can really be a let down where as ios and android are tits.