Labour. I'm lucky to be in one of the few seats where Labour, Lib Dem and Greens all have a fairly equal chance, where the Tories have basically none (under 10k last election).
In any other election, I'd have done a proper analysis against the three. But this is the only chance to give May a bloody nose, and I want to leave her reeling even if she eventually wins.
My Facebook feed has been entirely Labour (with a couple being Green) and I think a lot of people are setting themselves up for disappointment. My one hope now is that the curtain has been pulled back on May to reveal she's a soulless automaton with no actual leadership skills, and that Labour don't have another civil war. Corbyn actually seems to care about other human beings and willing to listen.