I don't like going for straight up tier sets, however ace they may be. I like to create sets (for RP or transmog) that speak to my class or race, or even spec. Below is my enhance transmog. Simple, trollish and pretty brutal looking. The legs are T12 but not transmogged yet as I haven't found suitable alternatives and the boots are slightly the wrong colour (there are a set that match the gloves), but overall very pleased with it.
I'm working on a set for my resto stuff that uses the TBC JP troll stuff (the original coloured ZA gear) with Shield of the Barrens as the look of my shield. Looks pretty awesome, if I do say so myself. Will post when it's finished!