Well this is to discuss about the perfect (Human) tank since since giants are not here yet and they will become the ultimate tanks...
Anyway I would say
Capped Sharp mind because well you will know what attacks the enemy is using and the extra hp is not to bad either :3
Rank 1 Defence, well with Kite shield its epic and gives surrounding party members defence. Very tank like.
Rank 9-5 Windmill because quick speed and rank 5 range is good to keep enemies off your party members.
Assault Anyway rank because well you can charge at an enemy and knock it back to protect a pary member so very useful
Final Hit :3 hehe optional but you can take all the aggro by teleporting around and hitting all the enemies keeping the aggro of the guys...
Armour that has defence against melee ranged and magic preferable.
Anything else a tank needs?