For ground mount, I kind of like G.M.O.D… It’s not so tall that I can’t get through doors, so that helps. I like the way it flies too, insofar as the head-first animation goes. I’m not a big fan of the sway but it’s a subtle sway. Otherwise I think the chaos-steed is pretty cool.
Flying mount… probably the Fel Dragon from time rifts, I dig that green!
There’s a couple I don’t have yet that I might like more, but sometimes I just use one for a while then onto the next one I like.