Plot: Batman and Superman must prevent a collection of each of their enemies from obliterating each other, and everyone else in Gotham.
The final issue of this maxi-series has a few too many corny one-liners from several characters, and a confusing-as-heck ending to a subplot that wasn't all that interesting, when the first issue came out.
I vaguely remember the Riven brothers from earlier in the series, but at this point, I don't really care who they are. The return of their mysterious benefactor was a pleasant surprise.
Kesel gives Jimmy Olsen a bit too much credit. How was he able to go from Jim Gordon's "I remember when this sort of thing was just a diversion, so a reporter could get close to the real story," to his own, "You mean there's something else going on?" That's a huge leap, even for a reporter. Jim wasn't implying anything about the Arkham breakout.
And Superman mentions that if he and Batman had saved Harrison Grey, the Arkham breakouts would never have happened. That's something they might say in Year 1, not Year 10.
Way too many villains made this almost painful to read. Every next line that came out of their mouths was some kind of corny wordplay. How does Pam manage to say "Annoying brats!" just after she gets plastered from Superboy, who swung a huge wooden pole into her torso?
It took me several reads of the whole Harrison Grey explanation, before I eventually got some kind of understanding out of it. Lois, too, could barely follow. If the underlying subplot of the entire series can't explain itself in a somewhat understandable way, then it really shouldn't be there.