[Edi]

Toughness and awe, hands down. Awe takes a long time to scale up, but the hit points ramp up very quickly. The opening post is also wrong about that ability. Heroic Toughness does scale up based on initial hitpoints, much the same as quickness. I once had an Arco Mystic with toughness and he was even with 25 or 27 hit points quite the wimp combat wise. Then he got killed and Rebirthed him. The resultant mummy has base hit points of 35, and my formerly glass-jawed mystic suddenly had 100+ hit points plus the undead immunities and all his magic. A couple of turns forging later, I had a fully equipped SC that took on whole armies by himself...

Awe is my second favorite, they just can't touch him and when you also put a horror helmet on one of these guys, they really ruin the enemy's day...

Edi