Mistwell
Crusty Old Meatwad
You are not a lesser known hero by making 12th.
Pretty sure that's exactly what that means. Superman, Batman, Wonder Woman, Spider-man, X-Men, Hulk. Those were the Tier 1 properties - the ones everyone knew.
For Marvel, Fantastic Four, Daredevil, and Wolverine (as an individual) ranked next tier.
Lower down were Punisher, Iron Man, Captain America, and Thor.
Iron Man, prior to the movie, was a lesser known character. Now of course he is a household name. But there is a good reason why, when Marvel was forced to sell their well-known characters, Iron Man was lower on the list. He was on the list (I think it was New Line, who let their option expire), but he just wasn't considered one of the highly important, well known characters.