I also think wind main is the best for zenith environment.. they are not as limited by random ninja type as the other mains.

and their talents can more easily adapt depending on the opponent mains... imo that is.

the other main i can't rank them.. it depends too much on the random ninja available for selection.

and then there is experience in learning some not frequent ninja lineup that actually work well indeed.

however, i'm thinking lighting main might be able to counter quite well against wind main.. potentially only, untested.