I've always liked Quan Chi, but I never really liked the outfits they put him in until this one in MK9:
I mean, he's a Kung-fu fighting Necromancer, so right off the bat he's awesome, but this was the first costume they put him in that didn't either cover up too much of him or too little, so he actually looked like a Sorcerer (plus you could see his great tattoos and what not) who was also a physical bad-ass and could fight.
The Nightmare Cryx Warjack from Warmachine:
Frankly, I like the look of pretty much all the Warjacks from Warmachine (especially the Cryx jacks) but Nightmare has to be my favorite looking one of them all. It helps that his model includes him finding (and more than likely killing) a kid just to show how crazy vile Cryx is. Deathjack is great looking too, but his weirdly tiny arms are just sort of strange.
The Berserker from Torchlight 2 in full wolf armor (I don't know the exact name of the armor):
I mean, come on. Just look at it!!