Green Lantern: Legend of the Green Flame
In Gaiman’s pre-Crisis script, Hal Jordan loses faith in his Oath and mission, and visits Clark Kent for advice. Along the way, they discover a lost Power Battery, travel to Limbo and Hell, and then Jordan uses Alan Scott’s original Oath to bind the wild Battery and restore his confidence.
JLA/Avengers #3
All seems well during the JLA and Avenger’s annual Silver-Age style crossover party, but something’s wrong. This creates a clever combined history of both teams and their adventures, but it’s merely clever. Both teams discover the dying Grandmaster, and they learn the truth about the separate universes they must restore.
Planetary/Authority: Running the World
An interesting non-crossover between the teams, as each investigates the same threat from a different point of view. The only contact between the teams is in an Elijah Snow/Jenny Sparks flashback! Best detail: the idea that the centenary heroes are the planet’s immune system, fighting off invasions and internal threats.
Planetary/JLA: Terra Occulta
An engaging twist on the crossover notion: treat the members of the JLA as if they were Planetary, and treat the members of Planetary as if they were the villainous Four. Both groups are enriched by the transposition. Readers need to be familiar with both series to enjoy the contrasts.
Superman: Whatever Happened to the Man of Tomorrow?
Alan Moore’s classic capstone to the pre-Crisis Superman shows the final days of the Man of Tomorrow. Nuisance enemies become murderous, foes ally against him, and Superman loses all of his supporting cast but one. But then Superman goes too far to defend his home, and chooses his own end.