In my opinion, Gloom is superior to both Stone and Smoke, unless you're going to PvP and need the FHR from Stone (then again, if you PvP, you'd need to try to get your hands on Fort/CoH/Enigma etc). Smoke gives massive resists at a dirt cheap price, Stone gives a hefty amount of defense. Gloom gives both, and only very slightly lower stats than the uni-functional armors and adds sweet crowd control! It's the most expensive among the 4 you listed, but still very attainable.
Duress is strictly a melee armor, and although it's very useful, I don't like it because of the unimpressive numbers (and also because I still play vanilla 1.10). If you don't have resist problems, are not MFing and not into high defense (e.g. questing Fury druid with a high-res Tomb Reaver), Duress should be your choice!