I would agree with you.... but Steel ain't interesting and Powergirl is in her native world. She's ok in Earth 2 but John has been very underused in the books. He really should be Clark's go-to science guy but BATMAN! Supergirl and Jon, I feel will be cool. Same for Superwoman and Super-man. If the two Clark/Lois solution is used, Superwoman can be a permanent member and Kenan is pretty much set to blow up, if the story is right.