Originally Posted by IEATFISH
The Windows Phone 7 interface is really good. My wife has the LG Quantum which is very solidly built. I have an iPhone and I've toyed with tons of Androids. My personal preference (for a phone) of OS is Win Phone 7 > iPhone > Android. But that's me personally. I just really like how polished WP7 is and how well it incorporates the info you actually need. I really like how polish iOS is though you really need to jailbreak to make it bend to my liking (WP7 is already there for me). And Android devices are great as well, don't get me wrong, but honestly I can't see a reason to pick one, functionality-wise, over the others. Again, personal opinion.
I've got a Quantum too, mainly because it has a QWERTY keyboard. As someone who doesn't' really care about apps, the windows phone 7 gives me a much better experience then iPhone or andriod. I just love how smooth it is.
My GF has some google android phone from Tmobile, and both my brother and dad have had iPhones since they came out. I've used them as much as you can without owning them, and I have to say I'm much more satisfied with the WP7 then I would have been with either of the other options.
I do wish it was less "facebook friendly" though. I don't have or care about social networking, so that just gets in the way for me.