I was on VaelPak's XDA page and he posted a really good an informative spreadsheet with numerous ROM's comparing battery life, benchmarks and things of that nature. Check it out:
https://spreadsheets.google.com/ccc?key=tArScQ4mc6tdckkuplbRKug&hl=en#gid=0
https://spreadsheets.google.com/ccc?key=tArScQ4mc6tdckkuplbRKug&hl=en#gid=0