All-Star Superman/Awesome

"Ultra-Sphinx:
 * For Lois's birthday, Superman gave her powers like his temporarily; he took her along for some crime fighting; he solved the riddle of the unstoppable force and the immovable object to save her; he defeated Samson and Atlas at arm-wrestling simultaneously to "win" her affection; he took her to dinner in Atlantis, then finished up by making out with her on the Moon. All in one day, one issue.
 * The riddle scene alone is its own Crowning Moment of Awesome:

Superman: How about this? .

Ultra-Sphinx:"

"Kal Kent: I'm faster! Stronger! Able to leap from world to world in a single bound! ...Your solar powers are in their infancy! You're not as strong, as smart or as fast as you will be...
 * A young Superman takes on his counterpart from the future:

Superman: Oh, yeah? But I have my dog!"

"Superman: You were right, Lex... brain beats brawn every time!
 * Luthor gets a fitting, if somewhat inauspicious one in issue 10: when Superman visits him in prison and issues the 'save the world while you still have time' bit, Luthor simply walks up the glass and spits on it and gives Supes an A-level Death Glare. 70 years of continuity and rivalry boiled down to one hocked lugie and two implacable foes.
 * ALL of issue 10 qualifies.
 * This may be more a personal one, but my respect for All-Star Jimmy shot up tenfold when he . It didn't do jack, but still.
 * In his Day in The Limelight issue, he gets a few but the best are beating an out of control Superman by becoming Doomsday and arranging to have "I Love Lucy" carved into the moon for his date with Lucy Lane.
 * When Jor-El tells Kal that he's dead and being converted to living solar consciousness, he states, "You can stay and play in the fields of consciousness. Or you can turn and face evil one last time." Guess what he chooses?
 * Of course. Because he's Superman.
 * Superman defeating a temporarily super-powered Lex Luthor.

Luthor: No! No! You're supposed to be dead! I had it timed! And... and you think I'd be stupid enough not to make more of this for myself? (reaches in his coat)

Superman: This? (holds up the vial)

Luthor: (trying to lunge at him) I saw how to save the world! I could have made everyone see. I could have saved the world if it wasn't for you!

(Superman knocks him out)

Superman: You could have saved the world years ago if it mattered to you, Luthor."