Who's the best UFC champion in history after all four No. 1s reached the Final Four?

The quarterfinals of our 32-fighter tournament picking the best champions in UFC history are in the books, and we’ve hit the Final Four.

This past Friday, we asked 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 weekend here, and the title game set for Monday night, we’re giving you the chance to vote for your favorite UFC champions ever.

It may not come as a surprise, but all four No. 1 seeds in our bracket reached the Final Four. Current flyweight champion Demetrious Johnson is matched up against former light heavyweight champion Jon Jones. And on the other side, former middleweight champ Anderson Silva is matched up against former welterweight and middleweight champ Georges St-Pierre.

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 new matchups. The voting in the quarterfinals will end today at 5 p.m. ET, and we’ll get the title matchup 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.)

Sound off in the comments – but most importantly, just vote. And if you want to take a look back at the first three rounds of voting, you can see the percentages in all the poll matchups here:

• First round (32)
• Second round (16)
• Quarterfinals (8)

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