Shaquille O'Neal. OJ was of similar fame, and OJ was very well liked and not at all controversial. He was a good looking glamour guy, but that he played self-deprecating and very funny roles in the Naked Gun movies made him appealing to the public. I thought he was great in those movies. Not one to one with OJ, but O'Neal seems to be a likable, nice and funny guy.
I think Peyton Manning is comparable, in that he is well liked, non-controversial, does funny stuff/makes fun of himself and does way too many commercials. The only real backlash against Peyton is that he does so many commercials and endorsement.
Stephen Colbert: Peyton Manning: MVP of Selling Stuff