My transmogging has been centered entirely around the Theramore's Arcanist Hat since the feature was added, meaning it's gotta be white. I've had it with Tier 5, then Tier 2, and finally with a set of items fitting with the Runecloth Robe look.
As I have it right now:
Still looking to replace the belt, but I can't for the life of me get my hands on the one I want (a fairly random level 41 world drop).
I agree that BElfs have possibly the worst skeleton in the game atm (see a BElf pally in T16, it looks fethed up), but I'd say that Troll is maybe a sidegrade at best.
Male trolls have bad posture, female troll though...
There is no such distinction for belfs, all of them lack muscle to support any of Blizzard's shoulder pieces on top of their own skeleton, well, maybe some male belfs could, but barely.