I'm on AT&T with LTE off and I'm getting even worse results than this. I want to see someone getting great battery life on AT&T; I haven't seen that.
As I posted in another topic, I'm on AT&T LTE in NYC and have had great battery so far. Currently at 1h56m of usage (mixed with LTE and wifi browsing, screen set to auto-brightness, BT off, iCloud on, 3 email accounts set to 30 minute fetch, including video streaming on youtube, RSS reading, music listening through the iPod via headphones and over AirPlay for about 20 minutes, and some Siri usage for changing tracks as I was walking around the neighborhood running errands with full hands) and 2h27m standby currently at 84%. Certainly better than how my 4S would fare.
Yesterday, my phone came at 70%, I plugged it into iTunes to transfer information and restore from my 4S iOS 6 backup, and it was at 100% at the end around 3pm after all that; I did a bunch of things, including playing with it, GPS running with music in the Nike+ GPS app for 1h15m, taking pictures at a birthday dinner, and just fooling around. It finally zonked out at 3am after I had to play Netflix over WiFi for 52 minutes to get it from 5% to 0%. Recharged to 100% overnight.