Other Worlds

The problem with Crisis-style stories like this is that you need to be invested in the other worlds before they go kablooey. In the actual Crisis, that worked, because they were Earths people cared about. Here, though? Alternate Earths are introduced as nothing more than cannon fodder. We're supposed to care because the heroes have the same names as people we care about, but I'd be much more interested in reading about, say, Betsy Braddock as Captain Britain, than having her walk on stage and then get blown up.