I keep reading other peoples posts saying juice defender is good. I personally use combination of atk, android assistant, memory boost and I also usually go into running services and nuke face recognition and timescape. Hope that helps.
Skinned, Un-Rooted Sensuous Black X10a that thinks it is an X10i running "Vanilla Gingerbread" 2.3.3 in Canada! Now Swyped from my 32GB Samsung Galaxy S3 running 4.4.2 (Kit-Kat) or Swyped from my Samsung Galaxy Mini (aka Dart)