Feel free to accuse me of lying, but my data usage is actually dramatically LOWER on iPhone 5 than it was on the iPhone4. I am now able to use Pandora, whereas I couldn't before on iPhone4/iOS5. I have also had no problems with iOS6 Maps---in fact iOS6 Maps uses WAY less data than the intentionally crippled Google Maps, which would download bitmap instead of vector graphics and chomp through my data usage like a monster.
I don't mean to argue that Apple isn't an evil company and I recognize that iOS6 has some glaring problems that affect a significant minority of people. But, the truth is, for a vast majority of people, all is well in iOS land.
The disconnect between the reality of the experience for actual iPhone users and the way it gets reported online is massive---it's like two different universes. Walled garden aside, the actual experience with the iPhone is quite good. Whether you buy into the walled garden or not depends on whether there are iOS-exclusive apps you value over your right to tweak and pirate (which, let's be frank, that's what the "freedom" of Android is all about in the USA---sideloading pirated apps and futzing with widgets. In China and other freedom-restricted places, I agree sideloading could have real freedom-related importance).