Source: wikipedia.com
6. Scarecrow
No, not that Scarecrow.
Yeah, no, I get which one you're thinking of, the fear gas spouting, Batman-fighting one. Not this one.
This one is the Marvel Scarecrow that they don't really use anymore "˜cause the DC Scarecrow is totally more recognizable.
The Marvel Scarecrow had a gimmick that is kinda my favorite thing. He was a contortionist who had an ARMY OF TRAINED CROWS. That is fantastic. Admittedly, maybe picking creatures that routinely break their necks flying into closed windows as your minions isn't the SMARTEST of ideas, but whatever. Trained murder crows are certainly an idea.
Heh, a murder of trained murder crows, in fact.
Also, he was the villain in the Ghost Rider/Captain America team-up, which shouldn't work, but kinda does. I mean, he's still like the THIRD best Scarecrow in comics, but I like him well enough.

