I've done a lot of testing. On paper you would think det would have heavier weight due to increasing damage to everything, but as a DRK ss crushes it, the changes to ss effecting dots is a big boon, on top of that using abilities faster will net more dps than a slight increase of everything with det. Crit is useless, with 630+ crit that's only roughly 10% critical chance, not worth it. Imo. I'm going for str, ss, det, crit. Since testing it started to make sense why our AF gear has so much ss on it. Also works well with blood weapon.