Well, I have 14 cycles on a brand new, straight from Apple iPhone 5 on 6.1--just did two calibration cycles back to back. (Down to 1%, up to 100%) Max capacity in both BatteryDetective & BatteryDoctor Pro is 1386. This is up slightly from getting the phone on the 17th, when the maximum was 1360.
By comparison, my "two weeks after release" iPhone 4 on 5.0.1 has 539 cycles and is showing at 1296 capacity after its most recent calibration. The first several months of life for that battery, it actually showed higher than the max capacity, and that was a pretty common experience. So I'm not too impressed with the one on the 5 yet. Hopefully it goes up a bit more over the next few weeks.
I'm a pretty heavy daily user and typically charge nightly, plus the phone is plugged in while in the car. Both phones are almost fully themed and running a total of over 100 packages with all the add ons Cydia tweaks require.
No real issues on either battery as both last most of a day's usage, though my perception so far is that even now the 4's battery lasts longer than the 5 does. I never had to turn anything major off on the 4 (data, location services, etc.), but I find myself having to do so on the 5 to get the same kind of performance. I'm in a fairly strong LTE area (better than our 3G), but even so, that definitely sucks down power. I'm looking forward to them getting the toggles right on this app so I can flip from home to away a bit more easily.