I understand what you're saying, and I *do* think Avengers will do very well (though I'm not nearly as optimistic as your billion-dollar mark: I'm in the 800-850 mil WW range); but you've got to understand that it DOES make sense to compare Avengers to its component parts, to compare Avengers to the past performance of similar genre movies, to compare these wild-ass guesses to the actual all-time records of OW and WW and OS and all the other acronyms....because *that* kind of speculation is grounded in fact and numbers. The kind of speculation that *you* guys are betting on is based entirely on hopes and wishes and dreams.
I hope you're right about a billion dollars. I really do. Nothing would make me happier. But at some point, realism has to be introduced into the equation; that's why actual publications like Empire and, who else was it recently, Box Office....???. posted box office projections that were a lot more modest. But they're viewing the film and its prospects realistically and objectively, whereas we view it through a haze of fanboy fangasms splattered all over the forums and blogosphere.