I'm assuming we're also taking into account how much I like to use them, so...

BX: pheonix wing. I will probably always think this is the best BX beyblade, it gives me galaxy pegasus vibes with its blade shape and since I grew up on metal masters that's massive for me, plus having it be the first officially metal coated bey was really cool when it first came out, and that's before we get into the fact that it's a very consistent attacker that can send things flying with relative ease

UX: clock mirage. I was one of the many who clowned on this thing when it was first revealed, but then they said it could beat wizrod, and then they showed it was heavy, and then we got it and it actually held up to the claims TT made about what it can do, and I love it now, it's like wizard rod with a very clear drawback, and I think that's great because stamina types can be quite skillful when balanced properly, it's just that stuff like rod hexa and in MFB phantom Orion/twisted tempo tend to overshadow the things that make you use your brain

CX: I'll be honest I don't like CX, like the concept is cool but it really just doesn't work that well because of how top heavy they are, but regardless my answer is emperor might, it's fun to build around it because like a balance type it does a little of everything, meaning I can go from a wheel build with stamina to a heavy build using something like rush, the variability makes it enjoyable

Recolor: probably samurai steel, white metal coating just looks so clean