#2 Dolph Ziggler and Shawn Michaels

Of all the comparisons on this list, most haven't actually had much of an impact on the career of the person. That isn't really the case with Dolph Ziggler and his doppelganger, Shawn Michaels. While Ziggler is a talented wrestler, his career has been middling, especially compared to the career of the Heartbreak Kid Shawn Michaels.
While Ziggler is a 2-time Heavyweight, US Champion, as well a 6-time Intercontinental Champion. This by itself would be an impressive record and history. However, Ziggler is frequently compared to his doppelganger career. Michaels, by comparison, is a 4-time World Champion, 2-time Royal Rumble winner, the WWF's first Grand Slam Champion and now 2-time Hall of Fame inductee.
It is because of this unfortunate comparison that many fans have seen Ziggler's run as being disappointing. Many fans also criticize Ziggler as being unoriginal and having stolen a lot of Michaels character in an attempt to get himself over. Unlike the others in this list though, Michaels and Ziggler have shared a ring together in the early stages of Ziggler's career. As a part of the Spirit Squad during their feud with DX.