1: Teen Titans

Beast Boy, Red Robin, Raven

2: Villains of DC

Joker, Lex Luthor, Darkseid

3: Among the X-Men

Cyclops, Storm, Professor X

4: Among Avengers

Captain America, Iron Man, Thor

5: Among Villains of Marvel

Magneto, Dr. Doom, Venom

6: Among heroes of Valiant Comics

I have no idea what this is