I'm sorry, but the suggestion to mention Orr is a ridiculous one.
He was certainly not the most exciting one, but Laraque was one of the best.
Chris Simon is my personal favorite, a lot of good fights with him.
Actually, Orr doesn't make my Top 10 (previous page), but I think he's of those guys that, if you time machined him back to the late 80's with all his current training and nutritional advantages, he'd cut a pretty wide swathe, so he was worth, at least a mention.
Laraque never impressed me, sure he rarely lost, but he rarely handed out any colossal beatdowns either. Chara's a more dangerous fighter, and I don't have him near my Top 10.
Simon... I could have found an argument to put him in my Top 10, but I'd say he's more of a Top 20.