In The Superior Foes of Spider-Man we can see a team featuring six "pathetic" Spider-Man villains. It's a fun book. Who should be the sixth member of the Sinister Six?
@marlboroman: Things is, Rhino feels like a too much heavy hitter. Remember, this is a team of "loser" villains.
That's honestly why I don't feel Shocker belongs. Love him as a villain but the whole "Shocker is a joke" thing makes no sense. He's one of Spider-Man's more dangerous tech based foes.