I'd say best striking in MMA is close between Anderson Silva and Jose Aldo.
Jose Aldo opens as small favorite over Anthony Pettis
Jose Aldo opens as small favorite over Anthony Pettis - Bloody Elbow
with Pettis it will be a true striking battle... Pettis is very quick himself, has good technical kickboxing and has some unorthodox approaches to his game... He is very dangerous... of even finishing Aldo...
Id pick Jose as well, but it will be a very dangerous fight for him... And he does often seem to fade in the later rounds or atleast slow down a little. Lets hope he can correct that, its its correctable so he doesnt get caught while hes tired.