According to a GQ magazine poll of NBA players: Kobe Bryant.
The 2nd most hated by his NBA peers? Bonzi Wells.
http://men.style.com/gq/features/full?id=content_4103&pageNum=3
Bonzi Wells
Not yet 30 years old, Bonzi Wells, shooting guard for the Sacramento Kings, has played for three NBA teams. “If you’ve got that much ability and you’re traded three times that early in your career,” says ex-NBA player and current ESPN commentator Tom Tolbert, “there’s obviously something wrong with you.”
Words like fumigate come up when people try to explain why GMs trade him. “It doesn’t bother him if his unhappiness infects the entire team,” says Memphis sportswriter Geoff Calkins, who recalls that when Grizzlies coach Hubie Brown was contemplating retirement (citing health reasons), “part of the calculus for Hubie was ‘It’s not worth it,’ and a big part of that was Bonzi. He helped bring Hubie down.”
When Brown’s successor, Mike Fratello, pulled Wells from a game at the end of last season, Bonzi threw a tantrum involving, characteristically, both profanity and projectiles. “This was in the final weeks of the season,” says Ron Higgins, another Memphis sportswriter, “when the Grizzlies were desperately trying to make the playoffs. Other players looked at him like, What the hell are you doing?”
Recalls sportswriter Jason Quick, who covered Bonzi in Portland: “He would flip off a fan and the next day say, ‘I blacked out.’ He’s such a con man. When the TV lights went on, he’d put on that million-dollar smile, then be an *** when they left.” He spat, infamously, on Danny Ferry. He bitched constantly at his coaches. He was fined for bad-mouthing his own fans in Sports Illustrated. He made a veiled threat after a reporter wrote a negative story about him. “He told me, ‘Don’t be surprised one day if you show up to practice with a steak over your eye,’ ” Quick remembers. “And I said, ‘If you want to do that, I’ll be a rich man.’ He said, ‘I’m not dumb enough to do it myself. I’ll have my posse do it.’ ”