Which Shakespeare?

I think I might need a new edition of the complete works of Shakespeare. The edition I have (the Pelican edition) is just fine, but who can be satisfied with a Pelican when there's an Oxford edition available (which contains Edward III & Sir Thomas More)? Normally, if there's an Oxford, I'd call that definitive and be done with it. But my very clever friend, who instigated this introspection, has the Yale edition, which appears to be pretty up-to-date, but for some reason doesn't seem to be very available (I wonder if Yale University Press doesn't sell through Amazon?). There's also an interesting-looking Norton edition based on the Oxford, but which is almost three times as long; a handsome Modern Library edition; a Bevington edition; and a Riverside edition, all of which got 4.5 or 5 stars, compared, strangely, to the 3-star Oxford (though it's the Oxford that's the source most found on Wikipedia).

Unfortunately, I can't seem to find any consensus as to which is the best or "definitive" edition. Guess I'll probably just wind up getting the Oxford...