Only champs and former champs from major organizations count... UFC, Pride, Strikeforce, etc. 
Not sure.. Jones?
Fedor?
Jones
It's gotta be Jones right?
Shogun, Rampage, Rashad, Vitor, Machida
Gotta be Hendo.
Wins over big nog, busta x2, newton, Fedor, shogun x2, wand, rich, Belfort and cavalcante.
Forgot babalu had a strikeforce title. Hendo beat him twice too.
Jones was first thought. Randy has to be up there too...chuck, Tito, vitor, Big Tim, Coleman, rizzo
And that's UFC which I assumed we were discussing
priziesthorse - GSP beat Sherk (UFC), Hughes (UFC), Serra (UFC), Condit (WEC) Parisyan (WEC), Diaz (Strikeforce), and Penn (UFC)And Shields
Anderson has newton, richx2, Hendo, marquardt, Forrest, Belfort and nick could be his 7th.
Voted op up for a great question...
rampage has wins over Randleman, Bustamante, 2x Liddell, Hendo, Wand, Machida, M'pumbu, King Mo. Pyle and Murilo if you count WEC/ELiteXC but Hendo still has more wins
TheDarkPassenger -Hendricks as well.priziesthorse - GSP beat Sherk (UFC), Hughes (UFC), Serra (UFC), Condit (WEC) Parisyan (WEC), Diaz (Strikeforce), and Penn (UFC)And Shields
What orgs count??? WEF, KOTC, Shooto, King of Pancrase, PRIDE, K1, WEC, Reality Superfighting, Hook & Shoot, Superbrawl, Ring of Combat, UFC, IFC, IFL,One FC, Bellator, Bodog, Rumble on the Rocks Dangerzone... Just some off the top of my head... Any specific criteria?,
Hughes is up there too.
Beat menne, newton x2, sherk, Gsp, Riggs(if wec titles count), Royce(if UFC tourney wins count), bj and Serra.
Great Thread. First name that came to mind was Couture.
I would say Hendo
HYBRID JON - What orgs count??? WEF, KOTC, Shooto, King of Pancrase, PRIDE, K1, WEC, Reality Superfighting, Hook & Shoot, Superbrawl, Ring of Combat, UFC, IFC, IFL,One FC, Bellator, Bodog, Rumble on the Rocks Dangerzone... Just some off the top of my head... Any specific criteria?,
lol if the Org had a wiki page
Mike Dolce???
In. Good question