Definitely the 2nd cuz Priest2 can prevent your teammates from death.
You could add Priest2 instead of Miko then I think it’s fine as support and damage dealer, but if you want for full support, do the 2nd build.
About miko, unless you have a fixed party with doppel or someone who deals melee physical damage, I think Diev1 would fit the build better, helping with mana reduction and CD reduction.
I disagree with some skill distribution like not adding points to aukuras and adding to daino… You won’t benefy from Daino much if you are not auto-atk build. Also, the new taoist skill is single target and 3s cast, definitely not good for PvE. The Upper Level skill will help a lot if you have Elememe on your party.