RE:
My battery life has been stellar. Having seen little in the way of activity since 1.1, I went back to bouncing between MIUI, Cyanogen, and Bugless and seeing a significant drop in battery life, especially on MIUI. After being back on Sapphire since 2.0 dropped, I'm back to seeing my battery regularly last 30-36 hours, even with moderate use throughout the days. Even on days when I use my phone heavily, it will last me from 7 in the morning when I wake up until I toss it onto my cradle at 10 at night. This alone is reason enough for me to stay on this rom.
I just use the auto-brightness but drop the minimum brightness for auto to "13," I believe. I overclock to 1100 with 125 minimum and have one other profile for screen off that has min at 125 and max at 400. I rarely use wifi unless I'm at home near my cradle because it seems to drain the battery much quicker on standby. That's all I did, and my battery kicks as much ass as it ever did on Sapphire.