Greatest Hits 2 is actually the superior comp IMO since it pretty much comprehensively gathers up all the good 80s Queen songs and has a really nice flow playing like an album. Greatest Hits 1 is missing some stuff that should be there and has an awkward flow imo.
Greatest Hits 3 is one of the weirdest compilations of all time. with post-freddie songs, outtakes, remixes, live versions, solo songs by freddie and brian, and a couple of totally normal singles that didn't end up on Hits 2.
Btw, judging by people's reactions to the trailer in the movie theater, people are gonna go apeshit over that upcoming Queen biopic. Ughghghghghhgh