Mine hands down is Rich Franklin, even though he is on his way out IMO. I always thought he had a certain quality about him that was classy in and out of the octagon. He has a very good stand up style and is quite crafty on the ground. Their are many better than him but he is my favorite.
Mine is Rampage back in the day he was slamming people through the floor. But since he arrive in the UFC he lost all that.
I liked Genki Sudo in the same way I liked Naseem Hamed, except he was much more respectable outside the ring. I like Fedor at the moment too. Sakuraba was (is?) technically immense, always liked watching him fight. I kinda like Royce Gracie as a fighter, mainly because I did BJJ, but not sure what he is like as a person!
Randy Couture but Franklin is real close and hes not even close to the way out he just signed a 6 fight contract and if he beats Belfort hes right there in line for a title shot.
i always like randy. that fight he dominated sylvia 5 rounds to none was an awesome fight. it was great watching his big goofy ass get handed to him from the clinch