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The ranking and placement of a lot of fighters on this list can be argued, there is no doubting that. However, to argue that current UFC welterweight champion Georges St. Pierre doesn't deserve to be at number one is a difficult argument to put fourth.
Of course, St. Pierre was knocked out by Matt Serra, but it is what the champ has done since then that really solidifies him as number one.
Not only did St. Pierre avenge his loss to Serra to regain his title he has defended that title five times in a row and he will attempt to make it six against Jake Shields at UFC 129 in Toronto.
One can also argue that St. Pierre doesn't have the greatest knockout power or has trouble finishing fights. The one thing that one can't argue is that St. Pierre regardless of whether he finishes the fight or not has the knack for making world class fighters and athletes look like amateurs of the sport and he can do this standing up, on the ground or from the clinch.
St. Pierre has utterly dominated the best wrestlers in his division by beating guys like Matt Hughes, Jon Fitch and Josh Koschek. He has put clinics on dangerous strikers and Brazilian Jiu—Jitsu practitioners in B.J. Penn and Thiago Alves.
Georges' wrestling is up there with the former Olympians and college wrestlers of the sport, the difference being that St. Pierre never wrestled in high school or college. There has even been talk of St. Pierre wrestling in the Olympics for the Canadian Olympic team.
In has last fight against Josh Koscheck, St. Pierre dictated that the fight stay standing where he utilized one of the best jabs in mixed martial arts to take away Josh's right field of vision.
On top of his skill set, St. Pierre is a tremendous athlete who is always in peak physical condition even during the off season.
So there you have it folks, Georges St. Pierre rounds out the list. There is a lot that can be debated and making lists like this are definitely a difficult feat when there are so many guys with well rounded skill sets. That being said, these rankings are the way this writer sees it.
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Leon Horne has been contributing to Bleacher Report for two years now. He focuses mainly on mixed martial arts, but he has also written about tennis, football and hockey. Just send him a message if you want to talk sports or discuss any opportunities. You can follow him on Twitter for updates: