Best looking Priest mount? Shadow / Holy?

[Toraah]

Ground mount: for holy I think the Winterspring Frost Saber is the best looking one, can be used for shadow too I guess.
Flying mount: the Life-Binder's Handmaiden from Madness Deathwing is pretty cool, nice colours on it

[Kivimetsan]

Flametalon.

Hopefully account wide mounts and achievments come with MoP launch, so then I wont have to play my Warlock just to show off the best mount in the game