It's pretty hard to compare the early seasons with the more recent ones. Fighters like Forrest, Rashad, Kos, and KenFlo have had years to develop their skills and become what they are today. Would you have ever thought Forrest and Rashad would be fighting each other in a title fight judging by their TUF performances? It's pretty early, but I think TUF 5 and TUF 8 contestants will prove to be some of the better fighters to compete on the show. Still, I have to say TUF 1 was the best, as it did give us Forrest, Diego, KenFlo, Kos, and Leben.