All Stars is a spin-off where queens who didn’t win their seasons and have proved outside of the show they can be Stars come back to compete for $100,000 and a place in the Drag Race Hall of Fame. All Stars tends to be watched more than the regular season and All Stars 2 is widely regarded as the best season of Drag Race ever.
The format changed in the second season (All Stars 2) where the queens get to pick who goes home instead of RuPaul every week until the finale where Ru decides who wins the season. They tend to have better fashion, more personality and nobody is really filler or disappointing compared to the regular seasons.
The winners so far have been Chad Michaels, Alaska, Trixie Mattel, Monét X Change & Trinity The Tuck