[Q] Best ROM + Kernel combination for battery life?

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http://forum.xda-developers.com – Pretty much what the title says. Preferably, I'd like to stick with Touchwiz because I like it, but if the TW UI bogs it down then I don't mind suggestions for of other ROMs. All I really care about is battery life (and maybe performance when I run heavy games from Gameloft, for example.) (HowTos)