This is more of a list of fighters I dislike rather than ones I want to see hurt. Panama Lewis and Don King are probably the only people in boxing I'd actually like to see harmed.
Most of the fighters I'm going to list have already been mentioned.

Allan Green - the guys is just an arrogant cunt who has made his rep. off of one KO of a very green prospect. He makes PBF look like Ghandi. He's probably the fighter I dislike the most in all of boxing. I even hope Manfredo KO's him.
Junior Witter - See above
Jermaine Taylor - I don't really want to see him KTFO, I just want him to lose, preferably in a fight which he deserved to win. This guy's been given a few gift decisions and I want to see it happen to him.
Zahir Raheem - Boring. Boring like Raffi.
Calzaghe - Again, I don't necessarily want him carted off on a stretcher or anything, but he's so arrogant - talking about how he wants to cement his legacy etc. and then fighting guys like Manfredo and Bika didn't endear him to me either. A couple of times now I've read interviews where he criticizes other fighters level of competition and thats really turned me against him. The best part would be the look on Frank Warren's face. I'll give him his due if he can beat Kessler though.

I'd add Zab Judah too, but he's already taken enough beatings, so I'm satisfied.