Are you just going to stand there and lie through your teeth?!
Have you ever seen such an amazing sunset!?
So you're with joombaga, not willhimsa -- right?
I'd tend towards willhinsa and yes, I'd rather switch the question and exclamation marks around in rplst8's examples.
My thought is that punctuation "terminates" a sentence, and so the mark that's further to the right is "terminated" later, therefore it more represents the overall sentiment. The left punctuation mark is like a modifier; it's an adjective before a noun.
Are you just going to stand there and tell me this isn't the most amazing sunset you've ever seen‽
I think I'd agree with that, too, i.e. the first character being the stronger marker.