#3 Sgt. Slaughter
If controversy alone equated to a successful title run, Sgt. Slaughter just might be one of the most successful WWE Champions of all time. However, that's not the case.
Sgt. Slaughter had already garnered quite a bit of hate after turning his back on the United States, aligning himself with Iraq after the invasion of Kuwait in 1990. Slaughter joined forces with General Adnan and would trash the United States any chance he got. Eventually, he earned a title opportunity against then WWF Champion Ultimate Warrior. The Warrior put his belt on the line at the Royal Rumble 1991 PPV, and thanks to some interference from The Macho Man Randy Savage, lost his championship to Sgt. Slaughter.
Corey Graves deleted his Tweet! More details HERE.
Throughout his run from 1990-1991, Slaughter received multiple death threats and would wear a bullet-proof vest when going out in public.
Slaughter eventually lost the WWF Championship to Hulk Hogan at WrestleMania VII, but they were completely overshadowed by Macho Man vs Ultimate Warrior which took place earlier on in the night. At this point, Slaughter's career was already winding down, and it was clear he didn't have the stamina necessary to carry on in title matches. Between that and a storyline done in poor taste, it's hard not to consider Slaughter as one of the worst champions of all time.