I don't mind letting Marginon go AI... like everyone says, he's pretty gutted at this point.
As for the Jotenheim / Pangaea / Pythium war... well, I am pretty newbish, so I have no doubt Jot and Pang could crush me if they ganged up on me. Which is why my present strategy is, erm, unconventional. Especially since I have no easy way to get troops over to Jotenheim anyway.
So I'll leave it to the more experienced players to decide what to do from here. I don't object to anyone declaring victory, or, if they prefer, beating up on a newb
Just one thought though -- have a look at the dominion chart before deciding one way or the other.