I have returned to the greatness of thread after having discovered the existence of a thread about people disliking Wayne. *shivers* I'll stay in this corner of Wayne appreciation, thank you.
In all seriousness, I think it's Wayne's flaws that really make his character. He's terribly flawed- he steals, drinks, cheats, swears, lies- but under all that he's a genuinely good person, and somehow the contradiction of what he is makes him a very compelling character.
Plus, he's awesome.