I believe Larry Holmes to be one of the best Heavyweights ever, he is in my top 10. He carries a fairly large chip on his shoulder though and this is always evident in his interviews. He beat up on an old and tired Ali and he gets the blame for that, he had a close win against Norton but never got the chance to fight Foreman who retired prematurely before his reign. He missed the golden era of the 70's with Foreman, Frazier and Ali battling amongst themselves and then he eventually loses to Spinks who he thinks he beat twice but he loses both closely. He gets smashed by Iron Mike and that is pretty much it for Larry and i guess he feels hardly done by in the whole scheme of things.
Holmes need not worry to much, real boxing fans know he was good.
Get over it Larry and get on with life, stop whining about the past and what could have been, you were a great champion and nobody has forgotten it.