i mean, i feel like the first thing you should take stock of is whether or not you LIKE one of them. or liked one of them. prior to them asking you out. out-ish? tentatively out? dancing and dating aren't necessarily the same thing? sometimes? i think?
that'd probably make a pretty solid foundation for decision-making.
but, if not? (which is totally fine, btw. cause you don't HAVE to like somebody just cause they ask you to go to some fancy shindig with them.) who do you think you'd have the most fun with?