Honestly, none of them. I dunno why, but I wouldn't want to do that kind of fan interaction with an actor at all. I don't even like it much with any creative person/artist, though I have geeked out over David Mack, at least the first time I met him. Went total fanboy lol. Was asking him about the tiniest little details in the stuff he'd done at that point.

He handled it really well, and (luckily for me) was a little surprised I was asking art questions more than comic questions, so he ended up getting into it (or so it seemed).

When it comes to actors, I tend to want to keep them as actors, a bit distant. Makes it easier to enjoy their work for me. Well, for the few I've met at all, anyway. There's something about seeing the actor irl that makes it harder to watch them and forget they aren't actually the character. It fades after a while, so far, but I wouldn't want to get that close with the ones I enjoy the most, not when I can find interviews where they talk about what I would ask anyway.

That being said, I would pick Ed Norton. Mainly because he's the sort that has been pretty detailed in the past in interviews, so it would be nice to get even deeper into his technique. He's really good at explaining the way he approaches a role.