Water cuz RP-setting.
Fire cuz Konoha. Expect some firebenders lol

Buddha is also right. 

EDIT: Mcnyan saying stuff about rape.

Jeez.... it's unlucky to be a fire user now. Everybody wanna rape you. Why can't an Uchiha just use Amaterasu every once a week so they can all warm up? Amaterasu burns for 7 days. Unless RP says no.

More like is there even a living MS user? I suspect Kaido to have both Byakugan and Sharingan.