The middle weights are always the best. You have a mix of upper classmen and top notch younger guys like Neil Erisman. I am sorry but for the most part the heavier guys are not good technicians. It is like watching football without the pads! Don't get me wrong there are a few with the total package but from top to bottom the technique isn't there like it is in the middle weights. The question is "toughest weight class" so I am looking at top to bottom.