Although silly and impractical I've always thought the wisdom of solomon would be the best way to go. Threaten to irradiate the place so NO ONE can live there and then whoever backs down first should be the one who gets it because they obviously care about the area the most. That wouldnt work with Geth though because they are robots. :|
As for Tali I kind of sighed at the point when she was on about not being able to settle on another world. If at least some of them do it now maybe their future generations can have a planet and build up a half decent immune system. Way to be selfish and short sighted.
