ONe thing I noticed about Vash and spidey is, none of them have killed....on purpose that is, but then, I've only read bits and peices of the spider man comics, (mainly my brothers old comics) I do think though, that this would be a draw. if I recal, I think in one of the episodes vash says he doesnt like the site of blood, or something like that. (I dont know if that has already been mentioned in this thread) but yes, most likley a draw, or tie, wichever sounds better.