Currently I'm using T6 for my DPS set and planning to throw The Unstoppable Force in there to match it (unless Archimonde wants to drop his damn sword). I also use the entire replica Heroism set + SW Tabard for my tank gear w/ Azuresong Mageblade and Drillborer's Disk.
For PVP I just use the whole wrathful set. Probably with the Vengeful greatsword.
Though I have something like 40-50 unique weapons stashed away for transmog, I really only have a few sets. I need to remedy that.