I disagree with the high dex builds and people saying that rhino's can't hit anything. I have 67 dex (for ring) and will not go a point higher. My hit % is 80% and with Vital Force at rank 6 my hit goes up to 101%. I will obviously be increasing Vital Force when I hit 65 as well. I don't see any reason to pump up dex beyond ring requirements. I am only level 52 at the time of this post.