It depends on water conditions.
Some of my favorites are:
Golden Shad (only available by Kinami)
Watermelon
Black and Blue flake
and
pumpkinseed
Senkos are excellent baits. Remember though to use big hooks with them. I like 5/0. When the weather is nice and fish are active I fish the bait like a soft plastic jerk bait....retrieve is rather fast with erratic jerks. When its cold and/or the fish are larthargic I almost deadstick the thing!