Is Connor (or is it Conner?) such a common name that two of our second-generation JLAers should have it? Conner (Green Arrow) Hawke and Connor (Superboy) Kent?
What about Cassie? Are we talking about Batgirl (Cassie Cain) or Wonder Girl (Cassie Sandsmark)?
I never have been good at telling the difference between Deathstroke and Deadshot. Putting them both in Villains United was endlessly confusing.
Of course, there hasn't been much reason to be confused about Linda Park (Mrs Flash) and Linda Danvers (Supergirl), or Jason Bard (P.I.), Jason Todd (Robin II), Jason Blood (the Demon), Jason Burr (Kobra's twin brother) and Jason Rusch (Firestorm II). Still, I have to wonder if the phone book in the DC offices just isn't very big.