Well, for the sake of interesting plot twists; if you try to be nice to everyone, you might find yourself torn between two or more different battles.
If you claim to be all of their allies at the same time, you may find very interesting predicaments. Even you may have to choose a side at some point.
Staying out of it is kind of out of the question. I don't remember the rules clearly, but I think it's something to the extent of "Last man standing with the exception of those pleading fealty."
"It's such a fine line between clever and stupid."
The Chronometal Wars, a fan-fiction taking place in the PPGD Universe. Catastrophe is the only certainty.