Which ROM is best with battery life?

[Verdagon]

Hi everyone! First timer here, thinking of getting a droid 2 global.

1. What ROM is best for the droid 2 global from a battery standpoint? I'll mainly be using it to listen to music on pandora, and doing a little bit of opengl development on it, so I was hoping to get as much battery life as i could out of it.

2. Also, what's the best ROM for fast UI? I'd rather not have the UI animations and stuff that slowed it down on the iphone 3g. that thing was PAINFULLY slow.

3. With a quick browse, I've seen people say that aokp and cm9 use battery up a lot, but on liquid ICS you can't use the 'b' key. Are these still issues?

Thanks a bunch!