This is a question that can never really be answered, IMO. A kernel will act differently on every single phone. Just because I swear up and down that Lou's #9 is the best kernel for sense ROMs doesn't mean it will perform good for you. Everyone kept saying Lou's#8 was great when it came out, so I flashed it, after boot my phone became very glitchy and unusable so I had to restore my backup. I'd take the suggestions people have given, make a backup and start flashing and testing until you find one you're happy with