[bizzum]

Not entirely sure on the question. You will have all of these skills and they will all skill up as you tank and get hit. They are all equally valuable, but they all will be naturally increasing as you play.

The only way stats will affect the skill is the rate at which you learn them, and I believe that it is dex which affects their rate of skill up, but that might only be for offensive?

If you are tanking as a warrior for a group, you're going to want to go for a combo of AC/HP(Sta+Raw HP)/DEX that will allow your weapons to proc and to make you not squishy. You shouldn't need to pump points into any of these skills, they will always be capped for your level unless you are not tanking.