the coolness available with mywarcraftstudio (no-one else can see it tho)
makes the normal paladin mount look a lot cooler :P ill probobly reset everything after an evening of messing about with the games models
edit: made a mod of sorts, which changes all the warlock pets:
imp: mini diablo
voidwalker: the beast (a bit smaller :P)
succubus: banshee
felhound: mini zergling
the mini diablo works quite well as an imp, as its got attacking animations and such