Not just people you really like. People who should go down in history.
This sounds stupid, but I'm gonna say Smokey Robinson.
Whether you like that style of music or not, you've got to admit what he did was incredible. No only was he the leader of "The Miracles", he also wrote many many songs for just about every other atrist on the Motown label, he produced most of the songs he wrote (and, thats A LOT of hits), he did a lot of business stuff with Berry Gordy-all in a relatively short space of time.