My understanding of Civil War - and, for that matter, most of the Marvel crossovers for the last ten/fifteen years - is that there's been a good idea in there, a 'what if?' that's worth exploring, but that it's been executed at best with glaring flaws, and at worst with a distinct inability to tell the story of the dilemma they're trying to illustrate.
I'm kind of curious how the one where all the worlds merged went, though, because I didn't get an accurate sense of what it was actually like, just some vague positivity about characters the reviewer liked getting into 616 continuity.