Who do you think is the most neglected villain in comics?

There are thousands of villains out there, some being better than others, yet many are ignored or left in the dust. Even some really cool and popular villains rarely appear. Which do you think are the most underrated?

Black Manta and Tombstone.

I feel like there's not enough Dr. Doom, Bullseye, or Mysterio. Doom, though a frequent Fantastic four villain, is often not included in bigger marvel events other than the original secret wars. Bullseye and Mysterio just don't show up enough.

Anarky...

Molecule man, Moonstone, Taskmaster.

Children of the Vault.

Killer Moth

Black Manta, Prometheus, Doctor Destiny, Felix Faust and the entire Apokolips line up.

Those guys look kinda neat, actually.

@darthmummy: They really are. If I wasn't so behind on my reading, I'd give their appearances another glance over. I don't hold out much hope they'll return any time soon considering the mess that's out there with Marvel and the Inhumans and mutants and Secret Wars/Battleword, etc, etc. More's the pity.

Like all of batman's villians besides joker.

Riddler, Two-Face, Mr Freeze, Cardiac, Shocker, Rhino, Scorpion, Toxin...there's a lot really.

Adolph Hitler.

Spiral......

Mr. Freeze is always the first one that comes to mind. Has Mongul shown up anytime recently either? He was teased back in GL villains month and I never saw him again.

Scarecrow, one of the coolest villains in Batman's rogues gallery yet there isn't really a single standout story for him imo.

Two Face, the main contender with Joker for Batman's archenemy but hasnt been utilised much since The Long Halloween.

Not to mention he is much more dangerous than most people think.

Two face, bullseye, So many superman villains.

Most neglected for their potential...

I'd say Hush, he hasn't really gotten to do much.

egghead

Bullseye, Taskmaster, Scarecrow.