So the other thread is about pretentious modern artists, myspace photographers, and grade-school manga artists.
What do your art heroes have in common? What do you like to see in drawings? What have other artists done that made you say to yourself, "hey that's a really cool person,"?
My art heroes are cool guys who are willing to talk about their art and their background and the paths they've taken to get where they are, guys who seem to be just as excited to see new talent as you are to be new talent. They're good, and they keep on getting better, and I think a lot of that is because they don't distance themselves from new people - they seem to recognize that they can learn new things from everyone.
In drawings and paintings I like to see speed and confidence. I like to see drawings like Miyazaki's where he puts down three lines in four seconds but there's more life on the page than in many of the masters' studies. I like big confident blacks like Mignola and big patches of color where you wouldn't think that it was the right color if YOU were painting it, but it IS the right color and it's perfect for the spot it's in.
When I walk up to an artist and say something, and they smile and start talking to me before I've even shown them my portfolio, that's when I think they're a cool person. Being an agreeable and cool person has nothing to do with art (imo), and so I'm happy when I meet other people who feel the same way - or seem to.
Also, I can pass for a twelve-year old kid, and it's so awesome when an artist I admire will take the time to talk to me. I've been blown off so many times... so it's nice when your art hero turns out to be a cool person.