User blog comment:4katcat/Symmetry between The Light and The Team/@comment-432124-20121204032925

I was thinking more of it being like this:

Miss Martian vs Queen Bee - for reasons that you mentioned

Superboy vs Lex Luthor - for reasons that you mentioned

Artemis vs Ra's al Ghul - He's her father's, sister's, (and possibly mother's) former employer.

Zatanna vs Klarion - for reasons that you mentioned

Aqualad vs Ocean-Master/Black Manta - They're the sea characters.

Robin/Nightwing vs Brain - They're the science and tech nerds of their respective groups

Kid Flash vs Vandal Savage - They had their tussle in Season 1 and Vandal almost kept K.F. from saving Perdita.