I completely agree with Mini Man.
I don't believe it matters much while leveling, but full VIT is the way to go when you hit 50. I can recall some moments where I suddenly dropped to 200-500 health and it saved the fight. Even having no bonus stats invested in STR, you will never lose enmity if you maintain your rotations. Any points being used on DEX is really not worth it.

You will absolutely want as much HP as you can get to help out your healers when you are on Twintania and she hits you with a Death Sentence + instant Auto Attack.