When was there ever a firebolt supreme? Or am I that out of the loop of the Harry Potter world these days? When I last paid attention (okay, okay, so no, I've never really seen Fantastic Beasts - think I tried watching it once and it was boring to me - guess you could call me a bit of a purist in that I prefer the books, have seen most of the movies (don't know that I ever watched Half Blood Prince that I can recall) but definitely like the books better, have read "Cursed Child" once and pretty sure I donated it somewhere just to get rid of it and so on) there was just the plain ol' Firebolt. I mean, okay, again, considering I've mainly read the books and the last book came out in '07, I suppose maybe a new broomstick was added.
@clouseums - now I'm picturing people trying to play quidditch on Swiffers. Oh god, if it was one of those Swiffers that has the wet wipe you attach to it I can just see the teams lobbing those at each other, bahaha!
Favorite - probably the firebolt, because it's a firebolt, duh.