Sorry -- I was limited by the number of permitted poll responses. So when I had too many, I tried to be somewhat objective and go with stats/advanced stats. I realize that's imperfect, but there really wasn't any other objective way to choose.
As a shooting guard in Cleveland, Hughes averaged about 15 ppg, 4 rpg, and 36 apg. He was plus VORP both years, and about a -1.0 BPM. He wasn't the great defender he was advertised to be, but he was still a plus defender. He was a terrible acquisition in that he wasn't as good as advertised, and meant we couldn't get anyone else because of the money/cap space we invested in him. But in terms of his own play, I couldn't say that he was objectively as bad or worse than the guys listed in the poll. I could certainly see him objectively in the top ten in terms of "biggest disappointments", but not in terms of worst players.