H. Jon Benjamin may be one of my favorite voice actors ever. Whether playing a drunkened soccer coach, a sardonic grill cook father who has a really quirky family, or a bumbling secret agent from ISIS, he plays all of his roles with such dryness and wit that him reading from a phone book would be solid entertainment.
Personally, My favorite role of his is Coach Mcguirk. I think this video clip does all the backing up I need.
also, if theres a role I'm forgetting, then please just add it on the poll.