My name pretty much says it all: Yoda, for sure! How can you not like Yoda? He's two feet tall, arguably one of the most, if not the most, powerful and wise force users ever, trained numerous notable Jedi as well as countless younglings, has an awesome hover-chair thingy, speaks in inverted sentences, lived 900 years, walked with a cane but could jump around like a backflipping hyperactive hamster on steroids and a caffeine high in battle, and even has a song written about him!
He's also voiced by the epic Frank Oz, who also voiced Miss Piggy, Fozzy Bear, Animal, Sam the Eagle (all Muppets), Grover, Cookie Monster, and Bert (Sesame Street). Yoda + Frank Oz = Ozda = pure epicness.
My second would have to be Quinlan Vos. A Jedi with dreadlocks? What more needs to be said?
Third place is a tie between Liam Neeson as Qui-Gon or Samuel L. Jackson as Mace.