For Jedi and Power I'd have to say Luke, though I'm not sold on the wisdom/intelligence. There Yoda probably gets my vote. Sith it's Palpatine all the way, he had everything, both in terms of power and intellect, the guy not only led the Jedi and Senate around by the noses, but he managed to win over Dooku, who was himself considered one of the most powerful and intelligent of the Jedi of his day. In short the Emperor had it all.