Honorable mention goes to:
While they look sleek at first glance, an iota of scrutiny reveals a failure to stick to any real theme. Yoda for AOTC just makes no sense when the rest are villains.
Generic Stormtrooper instead of Boba Fett? Heck, if they wanted to stick to big bads they could have used Tarkin for SW and then Vader for ESB.
Ultimately, lazy floating head designs are always a fail.
Bonus points for dropping the episode numbers. But points docked for just slapping STAR WARS on each with the film's title underneath. Each cover should have had the film's title as a logo:
