Every single player Mark Sparkless Hughes signed with the exception of Ryan Nelson but he only lasted a few months.
So close competition, but i managed to find four most disapointed ones: Cesar ( "one of the world greatest keepers" well he aint were even the best in QPR) Park ( ManU fighter and sir alex's loyal servant....pooh!) , Granero ( real madrid star and too good for QPR......Yeah!) , Samba (world class defender and a man mountain for QPR defence....well he is like a bus, only much slower to turn around) Sad but true......
As an outsider, I have to agree that Hoilett is the most puzzling. I genuinely thought that you had got a valuable and exciting talent at a knockdown price, when you got him. I obviously have only seen "highlights" of most of your games, though I have watched perhaps 5 all the way through online - he's been conspicuously peripheral - out of the game, most of the time. Very odd, considering some of his good performances in a chaotic Blackburn side. In the negative value for money stakes - it has to be Samba