One note though Hyrist, unless your using signet and the monster is weaker then you, that -attack down isn't doing anything.

Monsters have a floored cRatio of 1.0. Mean that even if you inflicted them with 1 attack while you had 400 defense, it would still treat it like they had 400 attack. Its why PLD's groan that defense doesn't mean anything and how MNK's even with CS up still don't take that much damage when they do get hit. SE cheats pure and simple.

You only need enough defense to overcome the monsters attack and ensure it doesn't get a bonus, any extra is worthless unless you get crited.