I hate Tony Allen. He's got one of the worst jump shots in the entire NBA, and makes a ton of dumb mistakes on both ends of the floor.
I echo Roy's thoughts and would like to add a few of my own:
I wouldn't even give TA the benefit of calling whatever he has a "jumpshot". It's more like a jumping catapult without accuracy.
"Dumb mistakes" are being quite generous. He makes TERRIBLE DECISIONS time and time again when he has the ball in his hand. Seriously. He always goes for the tougher pass, forces a tougher shot, and takes very tough paths when he decides to take the ball to the rack. He simply cannot be trusted in ANY situation (clutch or non).
Fun Fact: TA is the only guy on the squad who got his championship ring fitted for his PINKIE FINGER.
Hate is a strong word, so I'll just go so far as to say I hate his game, his mentality, the decisions he makes, the fact that he hasn't improved at all since being drafted, and being the lone person responsible for increased security around the bench during the series with the Bulls.