[Jason Abbadon]

Yeah, but while Bendis loved the hood, EVERYONE- every single man, woman, child and mammal of all species, thought he sucked and should never have been an avengers threat.
He would have been a great Spidey or Daredevil villian but the Avengers? The same Avengers that go into space and save the planet and fight Thanos? nope.

Graviton is an odd one- his costume is so laughably clownish (big pink circles?) that it kinda makes him embarassing.
Plus, the Mandarin had him kill himself by useing his own powers to squish his own brains out (in the incredible Iron Man: Haunted), so we wont see him again.

Go with Controller instead and swap Silvermane (also dead) with Grandmaster and you'll have an epic list.

I'd love to see those Predator X creatures get made- those were cool monsters.

Still...what we need most is High Evolutionary, Grandmaster, Korvac (in clear pinkish plastic), Secret Wars Doom, Baron Strucker, Gorgon and a classic Titianium Man (6"!)