I mean I choose Keros because while being known as the trickster he still doesnt go out of his way to only acknowledge the priests and kings/queens of those who follow them like most when even a farmer has a chance to see and talk to there patron deity is something to respect.
Out of the godsTM we've seen and experienced so far, Keros does seem to be more of a classical "father"-esque type. Biggest problem with all of them is that they've taken different roles and attitudes over time, and have infighting instead of getting stuff done, or having serious emergency plans they'd cooperate in, like the winter palace. Complete universal threats should be dealt with as a group of all of them at once to minimize risk of having even one lost, and that drop in power risking the entire dimension. Keros at least seems to be protective of his people, to a extent, but he sometimes seems a bit too lax and interested in chaos happening for the fun of it, which either amounts to playing a minor prank then giving you 500 dollars, or possibly waiting to see if a nuke blowing up would be cool or not. kitsune as a whole needing to feed off people and making sure that they pay something so people don't just unanimously knight templar, that's acceptable, but eh. Out of the ones shown so far Keros does seem the most reliable, and very easy to believe in since nearly anyone can personally encounter him, but most of them seem kinda off. Less immortals with forbidden knowledge and more of different varieties of kids, with one each metaphorically dissecting a frog to see what's inside, stabbing whoever gets near the frog, holding it because it feels good, keeping it frozen as a pet in a box because it's rare, etc. the ideal would either be them forming a "justice league" type team or being removed and replaced with a single entity with no restrictions. at least one of the bad ends hints at a possibility of a certain someone doing just that, but even removing the difficulty in wiping out several gods and taking their powers, and the cultural effects, someone would essentially have to lose their entire individuality to carry that weight, to be able to help everyone without favorites, or having regrets influence decisions. if a new power were to try to help people while being allied with all the gods, it would probably just lead to further infighting, so all round just kinda f'ed. you wind up with a even more powerful soulless husk, which could lead to it's own problems down the road, or someone eating grapes on the porch until someone steps on their property.