
I haven't really given that much thought. It isn't Mario or Sonic, though I do love their games. It's not Sub Zero or James McCloud, though I did think they were extremely cool. It's not Snake or Raiden, though those are the most three dimensional characters I can think of off the top of my head....
Y'know, I think it might be Sly Cooper. I don't know if once I looked into it more, I'd still feel that way, but I think he is the best video game character for my personal taste. Dry wit, good design, fun/inventive video game series, chases after a sexy fox, has an interesting moral code, agile. If it's not him, he's certainly up there.