Though he was not my advisor, I received the most advice from him. He treated me with the same respect whether I was a masters student or a doc student, and he genuinely cared about my progress even though it had no relation to his own career.
Think about that for a sec. Some of the people I've met on campus, I don't think I could say the same thing about. I wish more professors would use Bill as an example and take the time to care about students, even ones who barely know them, whose lives they have a profound effect on.
It was through a meeting with Bill Winn that made me certain that UW was for me. Now? Not so certain.