I can't argue with any of your reasoning, but Sylvester still has a ridiculous ring to me, I suppose because of the cat association. I've always thought that Stallone could pull it off because he's a celebrity (though I think it was his name before he became one, and hats off to him for having the guts not to change it), also he's extremely macho. Sylvester still makes me want to giggle, though.