Which Galaxy Nexus ROM has given you the best battery life?

Bit the bullet the other day and rooted/unlocked my GN. Had been putting it off because I didn't feel like going through the backup hassle (which has pleasantly surprised me by not being that bad), and because of warranty concerns. Still in the end my yearning to go back to playing around with custom ROMs won out and here I am.

So I've heard reports of some people getting drastically improved battery life with a new ROM and I was wondering if anybody could comment? I'm running Android Revolution HD right now and it seems about on par with what I was getting before I switched. The one thing I have noticed is that my Juice Defender multiplier has gone up from about 1.3 - 1.6 but I'm not feeling the gains in performance. It has only been a few days though so we'll see.

Thoughts?