Ah, stop pretending to be above it all. If you are on the UK electoral roll, who will you vote for? If you are not, who would you vote for?
Who will win is scarcely worth discussing. But, as the post from politicalbetting.com I linked to says, there are a few questions to which the answer is not so certain:
Can she satisfy the fixed-term parliament act in the vote tomorrow?
Will Mrs May receive any backlash, like Gordon Brown, for going back on her word on holding an early election
If she loses the vote, what then?
If the SNP put in their manifesto Scotland should have Indyref2 next year, and they win a majority of votes or seats in Scotland, how can Mrs May refuse, Mrs May might have put the Union at risk. (It also damages her argument against holding an Indyref2?)
If Corbyn gets creamed at the general election, will he continue as Labour leader? This might be the easiest way for Labour rebels to get rid of Corbyn.