I finally got around to watching Superman & Batman: Apocalypse.
Despite some occasional shortcuts on the animation side, this is one of the more solid comic book animation offerings.
Definitely not kiddie fare, it's a great reprise for Tim Daly as Superman and Kevin Conroy as _the_ Batman.
There is some interesting concantenation of a few start arcs, but there's some meaty content here, and a good expression of the Batman/Superman/Wonder Woman interplay.
There's also a pretty impressive sequence showing what a battle between a Kryptonian and Darkseid should look like.