Level 15 Driving Attack: Increased Hate
Level 15 [Small Races] Deftful Dance: Increased Avoidance
Level 25 Steel Barrier: Decrease Attack Speed; Increased Mitigation, Parry, Riposte, Shield Block.
Level 35, Two Handed Weapon Furious Assault: Increased interrupt chance.
Level 45 Living Shield: Decreased damage; Increased mitigation and hate.
Level 55 Unyielding: Increased Mitigation (22%)
Level 55 Frenzied: Increased Attack Speed, Decrease Avoidance; Lose parry, riposte, dodge, shield block.
Level 60 Final Stand: Decrease damage taken to 1; Die on exhaustion. (actually drop to 1 HP on exhaustion not, but that is good as dead in most cases, stance is good for the very end of a fight with healers LoM)
Level 65 Vindicator's Stance: Increase Mitigation (15%)
If you are a small race, Deftul Dance for most occurences. Driving attack to increase agro is another option. When facing a harder foe go with Unyielding stance, but it is a stamina drainer. Once you hit 65, /s 12 for vindicators as a regular and /s 9 for big mobs.
Stamina regen is something to look at also. Acumen, the healer regen line with Rejuvination in it, Ancient: Sihala's gift are all Sta regen spells. It had been mentioned in threads to add Sta regen to Recovery item, but I do not know if anything came of that.