Perhaps not officially the most overrated but certainly one of the most dramatic descriptions of a player ever to drive the guys on the old boards crazy several years ago was the exceptional scouting report for one Andrei Markov in Montreal. It was the same summer Hab fans were trying to trade Trevor Linden back to Vancouver every other day. The board was in an ugly mood when Markov was described as yet 'another' second coming of Bobby Orr. Now Andrei is a decent player today and not a bust, it was just that the qualitative scouting report on him written up by Montreal fans was a bit overblown and it led to many censored threads and much heated debate. The HF posters weren't buying into the idea that Andrei was going to single-handedly turn the franchise's fortunes around and make them a Cup contender. Not that season anyway.
Back then, Robbie Schremp fans also drove many posters on the prospect board crazy including Dad (with a Trade Mark). Schremp was very young and he was being marketed by a number of fans, agents, family, whatever, as better than Wayne Gretzky. A few threads on the matter would have gone by without fanfare but it was the continuous, infinite, unending posting of flowering Robbie threads that had many regular Prospect Board posters howling derisively. Several years later, I'm glad nonetheless to see Robbie doing well with the London Knights.
I forget his last name but there was also this Mitch 'x', a player from the WHL, he was like 6'7" and an enforcer. He had many fans and many detractors. He was supposed to be the second coming of Zdeno Chara. I have no idea what happened to this guy. He got picked up by Montreal in the draft, I saw him play at the Hull Tourney and then he just disappeared.