Hero's Vitality , Hero's Resolution , Hero's Fortitude
The 25 points per rank and 10 points per rank does not sound like a lot... but when you consider 48 ranks or 86 or whatever you get the number to be it adds up.
It's a lot of work... but finishing the expansions give mounts Like the Snow Griffin Saddle which
Gives the Buff:
Mount Blessing Kala
1: Increase Current Mana by 30 per tick
9: Increase Endurance Pool by 3000
10: Increase Mana Pool by 3000
12: Increase AC v2 by 950
13: Increase Max Hitpoints by 3000
14: Increase All Resists by 50
It all adds up..