I personally love the Exotic Acolyte set, but it only comes... 72- 78 I think? But I transmuted it onto some crafted level 80 Masterwork gear, so it works out. I'll need to step up to exotic at some point, but since I am using Knight's gear, it serves its purpose fairly well still.
You will probably want to go to that skins website *forgot the address* and scope out the skins so you know what you want to go for.
After all, if you like a dungeon armor you might want to start working on those tokens.