Wired has a set of quotes by Bill Gates on Steve Jobs, and Jobs on Gates. Jobs has all the best lines:
"I am saddened, not by Microsoft's success -- I have no problem with their success. They've earned their success, for the most part. I have a problem with the fact that they just make really third-rate products."
-- Triumph of the Nerds, PBS documentary, 1996 (Ed. note: According to an Aug. 8, 1997 New York Times story, Jobs later called Gates to apologize for his comments in the film.)
"I wish (Bill Gates) the best, I really do. I just think he and Microsoft are a bit narrow. He'd be a broader guy if he had dropped acid once or gone off to an ashram when he was younger."
-- The New York Times, 1997
"Here's something Microsoft will never be able to rip off."
-- Mac World Expo, 2007, introducing the iPhone