WAR have guaranteed crit-direct hit on inner release windows thats why WAR go full crit to boost his burst and ignore DH bcs is pretty useless for him, PLD and DRK dont have anything like that so depend more of DH, the ideal thing is pick one tank and gear it up if you plan to go for savage, if is only for casual content dungeons/NM/24 raid it will dosent matter much if you choose 1 build and go for it, and the crit build will be the most neutral for say i think.