Breakdown of carrier options for iPhone 5?

Does anyone know or have some input on which carrier to go with for the iPhone 5?

I currently have AT&T and because of some loophole, I don't have unlimited data. I had an iPhone since the 3G but after going on my companies plan and then a couple years later going back to my own, it knocks you out of unlimited.

Anyway, Sprint sounds like a decent option but I hear that in the DC area, they aren't up and running with LTE just yet.

I probably will just keep AT&T and my measly 2GB limit but I haven't gotten those "65% used" and "95% used" texts in a while. If I'm careful I can probably get used to it.


Oh and as a side note, some new carrier needs to be made that doesn't deal with all of this BS. Data is data.