I don't have a specific favourite overall. I DO have a distaste for wimpy, pathetic characters, though. Other than that, my tastes are pretty varied and wide. So long as it's well-written, it's a solid contender to my list of favourite characters.
I had an incident in my kindergarten where some kid stabbed another kid with a rusty box cutter. It was during the science boom in class where everyone wanted to flex their general science knowledge and one kid brought up tetanus. Fortunately, the kid didn't get tetanus, but he had to get...
>short hair
>dark skin
>chocolate bar for abs
>gains for days
>will positively break me with every appendage she has
>feline glare
>can kill me
>MASSIVE MAMMALIAN MOMMY MILKERS
if you suffice any one of those criteria it's safe to say you're probably the best character in whatever I'm reading...