I'm not a big Android fan. I had 3 Android devices and had allot of issue with them. (Droid 2, Samsung Charge and Moto Xoom tablet) I was going to switch over to the iPhone 5 when they came out. iPhones run solid of what I have seen, but when I heard about the WP8 phone coming out, I waited for that and am glad I did. My WP8 phone runs soooo smooth and I like the UI and ease of use. There was a bit of a learning curve going from Android to WP8, but it was fun learning and didn't take long at all. The only downfall so far for me is the lack of apps, but that will be coming around I'm sure. All the apps that I used on my old Droid are available for WP8 except for the Turn By Turn navigation which will be coming out soon I'm sure.
Plus, every time you turn around, they are releasing a new Android phone. I hate that. As soon as you get the newest one out there, another one comes out.