IC: Rifts
my personal favorite was how it was specifically called out in pantheons of the megaverse how (if i remember correctly) thor, odin, and i can't remember who the third god was now could defeat the entire coalition states by themselves. oh, and having worshipers on a world is good for the gods' power. yet, no explanation that i can remember as to why tolkeen didn't offer to convert some people in exchange for one or more pantheons' assistance.
then again, that might be more trouble than it's worth to include in a campaign, unless your players are members of that pantheon and they're trying to take out the coalition by themselves. that might be interesting.