Really? I dont know i would say Karo and Rich for sure. Franklin is 21-2 in his career with his losses coming against Silva and Machida. On MMA weekly he is in the top 5, i dont know about that but top 10 for sure.
Karo has only lost twice in his recent history as well.. to GSP and to Sanchez. They might not seem like the best when you look at just them, but if you put them against other guys in their weightclasses they would definitely hold there own