I saw this on Sportscenter and I thought it was a great idea. The league already has Superman in Howard, because he's strong and he can fly.
Well, I think Durant should be Batman! Howard can fly, but Durant has way more tricks under his belt, being able to score from anywhere on the court and saving Gotham City (OKC- although I wish it was Seattle). This could go on for a while, with the whole Batman/Superman thing.