Tomorrow, go and vote!
Seriously, that's it.
Vote for whichever candidate you want to. If you want to vote based on policies, that's fine. If you want to vote tactically, then that's fine. If you want to vote based on the coolest outfit... well, that's also fine. Your vote matters, no matter how you decide.
Or if you can't stand any of them (or think none of them have any fashion sense) then turn up and spoil your ballot instead (a friend who'll be counting them tomorrow evening says "make it amusing"). Spoilt ballots still matter - they're counted.
Most importantly, don't let the Twitter Rage Machine bully you. It's your choice, and don't let anyone tell you otherwise.