Ravens helmet is horrible. Why not just have a white silhouette of Edgar Allen Poe inside a purple circle on a black helmet?
IMHO, the only helmet designs worth a damn are the Rams, Vikings, Chiefs, Chargers, Seahawks (although the original was fine), Colts, Dolphins, Cowboys, Eagles, Redskins, Steelers, and Bengals.
Boring designs that should never change....Packers, 49ers, Saints, Giants.
Boring designs screaming for an upgrade....Bears, Browns.
Goofy animal designs that need to go....Ravens, Panthers, Jaguars, Cardinals,
Meh, might as well keep them.....Broncos, Jets, Falcons