I reckon Villasanti over-achieved if anything. Had one good run of form and it was enough to nab him a representative jersey but otherwise he was fairly ordinary.
I'll try and keep it to players who at least proved themselves to a certain level, otherwise there's a bunch of players who played a handful of games but for one reason or another never made a go of it.
Trent Barrett - Unless he makes some tremendous strides in his coaching career, I fear that Barrett is going to be one of those names that disappears which is a shame because at his best, Trent was one of the top players of the game and as a Broncos/Qld fan I hated it because he could absolutely tear us up. Barrett still had a good career, but I honestly think he could have been one of the greats.
Eric Grothe Jr - Could have been one of the best wingers of his generation, instead will be remembered as a defensive liability who ignored his talents all for his love of music. A shame, I still remember that try at Suncorp...I wasn't thrilled.
John Hopoate - Will be remembered for that incident, which is a shame because Hoppa was a very handy player on his day and proved that through out his time.
Ben Ikin - Imagine what career he could have had if it wasn't for that knee injury?
Mark McLindin - A good example of a player who ended up becoming a jack of all trades, a master of none despite a big break out season. Unfortunately for Mark, he came in just as the Raiders were on the down-turn and it really affected his development at a player to the point where he's nothing more than an obscurity.
Julian O'Neil - One of the most talented players in the game, like Barrett, should have been remembered more fondly but he absolutely stuffed it for himself. Such a shame to see that talent go to waste.
Pat Richards - His early years were affected by his inability to stay on the field and when he finally did, he was off to the ESL where he had a good career but obviously as an Australian, didn't achieve the honours or reputation he probably deserved. Like Grothe Jr. think he could have been one of the best wingers in history.
Jason Ryles - Very talented player, just seemingly couldn't get the brain snaps out of his game.
Clinton Toopi - Was one of the best young centres in the game at one point...then he quickly became one of the worst. One of the strangest turns of form I've seen.
Sione Faumuina - An immensly talented backrow who on his day, could just about carry the team but just had too many off-field problems to make it work and ended up becoming one of the worst players in the competition. Those years in North Queensland were pretty poor...
Wade McKinnon - Another player who just never broke through to that next level. I recall his 2007 season was an absolute stormer in a year filled with great fullbacks (Bowen in particular had one of the best years I've seen in the position) but that was about as good as it got for Wade.
Lots and lots more obviously.