Stacking any stat other than your 2 main stats (VIT and STR) will result in either a minimal increase in mitigation or a minimal increase in DPS output. Both are completely inconsequential outside of min/max world first attempts. You guys are really putting too much thought into a game that has been simplified to it's absolute bare bones. The tank that melded full DEX isn't really any better off than the tank that melded full Det, and vice versa.