A paladin blocks more than a warrior. A blocking paladin is actually uncrushable as well as a properly played one will never go oom.
The meme that paladins oom easily is by those who dont know what to do.
Seal and juding wisdom basically is mana possitive for a prot paladin.
And yes bok is the single highest threat in game.
1 gbok = 117 threat per target hit so if you have a raid of 20 thats 117×20 threat goi g straight to the paladin with rightous fury. That threat is for all enemies in the area.
So on fights like ony and the welps.
If you pop greater bok on the raid all thay threat is pumped on them and they beeline for you.
It works single target to.