I think my problems with Ock on the show is:
1) Spider-Man never beats him without help.
2) He's seemingly only a teenage/Doogie Howser type so that Superior isn't a grown man in a teenager's body because otherwise it doesn't matter at all to the character.
3) He only fights Spider-Man, like, twice so it's hard to take him seriously as a major villain.
4) They didn't emphasize how much he was a bad Spider-Man by the end of the Superior arc to necessitate Peter coming back. Now part of that was probably so he'd remain sympathetic when he turns good, but still.
5) The brief period where he was Peter's guy in the chair and was basically handing Peter the solution to his problems.
6) Peter still kind of forgives him a little too easily for messing up his life and reputation.