Earlier quoted context omitted.
Sorry, but Bezos and Buffet are not even in the same league as Elon Musk.
My gut instinct was to agree with you, but with consideration pbreit is correct in my opinion. Musk is more innovative in areas that matter for meaningful human progress (SpaceX as opposed to Wal-Mart 2.0), but I believe as far as "business" is concerned Bezos is on top right now. They have different priorities. Personally I'm a Musk fanboy.
Bezos made money on Amazon before he started Blue Origin.
Plus Bezos doesn't have an obsessive internet cult worshipping him.