In my view, iOS is completely compensated by how much, even superficially, there is under the surface. WP is still in major catchup mode. Easy case in point: clearly separate volume controls. It has been in IOS settings since at least IOS 3, and while I've only noticed it since ICS, I'm sure there was a similar function in the android settings app. Windows phone needs to be more than a pretty face. At this point, excepting an improved web browser, I'm failing to find any real reason why I would want this Lumia 920 over a wp7 device, much less any decent android or IOS phone.
Then again, I didn't buy into this platform early on for the heck of it. I liked my Zune HD enough to jump into wp7.