The big day is here, happy 80th Superman....let's get this show on the road
Jurgen's story sees a Superman appreciation day where cops and crooks alike share testimonials of what Clark has done for them. Clark thwarts an alien invasion but is uneasy about leaving that detail unattended while watching the ceremony, eventually Diana assures him the rest of the JL have taken care of things.
The Hypertime story was pretty ambitious, all being told in one panel pages made it a bit of a confounding read at times, but every major popular or culturally significant interpretation, from Reign to Kingdom Come, got referenced.
Geoff and Donner's contribution was a tribute to Golden Age Superman, in one other story Lex takes a loss at chess to Supes pretty badly and attempts to chain him up with Kryptonite, Paul Dini's story involves Mxy creating a Superman theme park recounting a version of Superman history, but can't come up with an ending for the story that involves him destroying Clark!
Brad Meltzer's story was devoted to Chirstopher Reeve and interestingly harkens back to when Supes was trying to save Pa Kent when he had his heart attack
Bendis' story is a smash-mouth action fest in media res, Kara appears only to be smacked around and Rogal Zarr declares he is responsible for Krypton's destruction