Rank 7, PD for healing factor and synergy with Inquisitor or c2 priest for revive and mass heal.
Keep in mind barrier having a new passive where any allies hit while inside the barrier will have damage transferred to the paladin.
Why not both? What do you have prior to paladin?
My current paladin is priest2 pal PD2. I plan on swapping it to probably kriv/zealot, but you certainly don’t need krivis for pal/inquisitor imo.
I went c2 for healing purposes. No regret.