Wrestling is wrestling, how can you say that one weight is more pron to get hurt than another. The foe in the match is the same weight at the time of weigh ins so there is not a huge weight advantage. I dont know if there is a preferred weight by my point of view or not. I wrestled 140 as a freshman and 160 as a sr. so I dont see how you can say one class is more pron to injury. I dont know if i have a fav weight class its a matter of who is wrestling and how their styles vary.