Hello:
Been playing for about 5 years and first post
In general would vigor or agility alpha give better survivability for a TW/WP brute.
I run 4 def toggles and have pretty well soft capped S/L/E. Not sure if getting better HP/regen or getting better def would help more with survivability (especially incarnate content).
Almost T3 vigor, but would switch to agility if that would work better.
Thanks