A title in the UFC? They could be active or non active. Is it Kenny Florian? Diego Sanchez? Jon Fitch? Mirko Cro Cop? Dan Henderson? Who is it? I personally would have to say Dan Henderson he has compiled 29 wins and has won the ufc middle weight tourney, 2 pride belts (WW and MW) 05 WW pride GP winner, and he was also the SF LHW champ. Sucks he hasn't won a UFC belt.
YET! War Hendo!! 
Hendo easily imo.
Kalib Starnes.
Hendo
Hendo!!!
Gotta be Hendo
ABE FROMAN - Kalib Starnes.
His championship legacy lives on in Carlos Condit
- Nick Diaz nuthuggers.
Scott Blevins.
He was supposed to fight Tito.
The Mouth - Scott Blevins.
He was supposed to fight Tito.
Wasn't it Eric Koch? I wonder if Blevins will come out of retirement and challenge Koch for the FW belt should he beat Aldo.
Ok then......Wes Sims.
BrunoMcGyver -The Mouth - Scott Blevins.
He was supposed to fight Tito.
Wasn't it Eric Koch? I wonder if Blevins will come out of retirement and challenge Koch for the FW belt should he beat Aldo.
I saw Scott talking to Shonie today about his "Coming out of retirement" for redemption.
I asked him if it was redemption for being 0-45 and he corrected me that he is only 0-1 in sanctioned fights.
ABE FROMAN - Ok then......Wes Sims.In b4 Andy Wang
Andy Wang.
I know technically he counts but Hendo did win equivalent titles (i.e. Pride).
IMO the best fighter who spent all of his prime in the UFC but never won a title was Pedro Rizzo.
Dont put Hendo in this catagory. Hendo has accomplished more than a Ufc strap. Fedor syndrome is the best choice. 
I pick Guy Mezger.
Sonnen, Nick Diaz
Hendo a lil overrated got outwrestled trying to stall against rampage, never forget that
he wasnt throwin bombs just trying to wrestle
Werdum is up there
marquart would have absolutely murdered hendo.
yves edwards, nate diaz, rory markham, patrick smith, dave beneteau, josh koscheck, karo parysian, frank trigg, phil davis, john fitch, spencer fisher, nick diaz, allistair overeem , shane carwin, gary goodridge, demetrius johnson, alan belcher.
Shonie Carter. He Ko'd a guy who beat GSP!
Ultimate Bridesmaids - Matt Lindland and Pedro Rizzo
I used to call it the Susan Lucci award but she actually won her Emmy.