I use a lot of UUs, but Raichu can only use SubPunch and Revenge sets effectively and ONLY in UU. Hate to say such a cool poke gets the shaft like that.
Pikachu on the other hand, can do quite a bit due to light ball.
Strype has what he has dubbed a mixachu. (I have it too) and it's not too shabby.
DarkPulse is the set I recomend