The Miami Dolphins don't have the scariest logo by any means. When I think of a dolphin, the first thing I think of is how cute and friendly they look.
However, the wimpiest name for an NFL team is the Cardinals. What kind of name is that for a football team?! At least a dolphin is physically large. A cardinal is just a little bird. Not to intimidating to me!
Put the Ravens in that category too. What about names like Bills, Packers, Browns. Taken out of their NFL context, those words certainly don't evoke any thought of intimidation.
hey wait a minute... you own the Bengals, don't you....