It’s tournament season, and that got us thinking …

What would happen if we took the best champions in UFC history and matched them up, bracket style? Who would wind up the best champ of all time?

So with the NCAA Tournament’s Final Four upon us, we’re giving you the chance to vote for your favorite UFC champions ever.

Check out the bracket above (or open it in a new window here), then click through to vote in our polls for each of the matchups. The first-round voting will end tonight at midnight ET, and we’ll get the next round going after that. Everything will culminate Monday night when we crown our all-time best champ – through your votes – around the same time we have a new NCAA men’s basketball champion.

(Disclaimer: Fighter seeding was done largely based on total number of title defenses. To make the field, fighters had to have had at least two successful title defenses and/or have held the rare distinction of being a two-division champion. Two fighters qualified, but in part through interim title fight wins. In that case, Renan Barao and Andrei Arlovski met in a play-in game, and Barao got into the field based on one more win in a title fight than Arlovski.)

Don’t like the seeding? Don’t like the 32 fighters in the field? Sound off in the comments – but most importantly, just vote.

(Note that the polls may not show up in some versions of Firefox. It is recommended you use Google Chrome or Safari to vote.)