-Elseworld's Finest: Supergirl & Batgirl
-The redesigned costumes of Supergirl & Batgirl.
-The redesigns of everybody in general and Captain Marvel, Barda, Wonder Woman, The Flash, Hawkgirl, & Abin Sur in particular.
-Luthor's past...actions (spoiler averted).
-Batgirl as the dictator of Gotham City-state. Her batmobile is also cooler-looking than the regular batmobile.
-I can't think of any flaws.
-The flashback panels show intresting tidbits; We see the baseline versions of Captain Marvel, The Flash, & Black Canary, Wonder Woman in her Golden Age costume, all looking at a blueprint with Lex Luthor. It would be neat if there was a chronolgy presented for the JSA's foundation...
-Batman: Dark Allegiances
-Bat-man's redesign & the bat-gadgets.
-Pretty much everything else. The Joker, Penguin, & Two-Face running around without anyone batting an eye? That's pretty much like Chicken Boo, only not good.
Well, that's it for now, until next time.