Not me
Abyssia is fairly close to taking my Capital but I can make it costly for him. And Abyssia won't be strong enough to stop Agartha - who is only 2 from his capital anyway - as are you Mictlan! But neither of you have put Abyssia under any pressure to save me
I really like the victory conditions of this game. And had Vanheim not managed to retake his capital I think Mictlan may well have won even if his capital was eventually taken by Agartha. Abyssia's capital was very close to Mictlan. So even with Agartha overrunning Mictlan's Empire he had a chance of seizing it and winning as I don't think there would have been enough capitals left, especially if Abyssia took mine. But with Vanheim taking back his capital that will make an extra capital available (and reduce Mictlan by one).
If no one can stop Agartha though I am all for stopping now. While I have enjoyed the game, my game was over dozens of turns ago. And my last turns are likely to take a long time. I have many mages and communions/sabbaths to script for my capital defense. It ceased being fun a long time ago - I am only playing because I don't want to quit and scew the game. But my attacker can't win the game either and neither Agartha or Mictlan have chosen to try and seize my (or Abyssia's) Capitals so it all seems like a pointless waste of time if we are all just waiting for an inevitable Agartha win.
Due to the victory conditions a big crusade vs Agartha won't work (and that's good - too many games feature a mass gank of the leader by a bunch of cautious turtlers and this game has shown that needn't be the way).
So I say congratulations to Agartha. And lets call this one a win for Corinthian