Who else hates Weight Cles in Mixed Martial Arts?

I'd love to see Georges St. Pierre vs Lyoto Machida or Fedor Emelianenko vs Anderson Silva or something ridiculous like Urijah Faber vs Brock Lesnar but Weight Cles would prohibit such a thing from happening. They really go against the principles of Martial Arts as well being that you are not trained to fight people of your weight cl you are trained to fight or defend against anyone. But obviously nothing can be done unless something like Fedor stops eating or Urijah eats a ton of Twinkies in which case he wouldn't be in any condition to fight.