Questions from a long time Apple guy

I have been invested in Apple and their ecosystem for quite a while now. I have owned several iPods, an iMac, a Macbook Pro, and have had a few iPhones. I put in a preorder last week for the iPhone 5. The thing about the iPhone 5 though is that I am not that excited about it. A long with iOS6, I don't see any big advantages of buying this phone. The only reasons I am buying it is because it's a little taller, a little skinnier, and a bit lighter. All in all, it's just starting to get stale for me.

So I am thinking about canceling my preorder and moving over to Android. I am contemplating waiting it out for the Nexus or not. Like a boy moving out of his parents home for the first time, I am really nervous about this. I know very little about Android.

So my questions to you guys are:

Why do you love your android phone? What, in your opinion, makes it better than the iPhone? In what ways is it worse?

Is it a good idea for me to wait it out for the Nexus? Or would you recommend something else?