[...] but why don't we trying something that isn't just different base and/or legend colours on alphas and mods?
^ Yes, this very much.
And in the spirit of that, I'd vote for the SNES, and with darker mods too, as suggested by sherbo. Not sure about the rgby, makes it borderline unicorn for me, but could be an addon.
Also, why is everyone still doing only WASD, I wanna see more QWER for us moba players, please. With an off-colour R of course
I actually like the yolch too.