#5 Bam Bam Bigelow
The late Bam Bam Bigelow is one of the greatest big men in the history of professional wrestling. After a short run with the WWE in the late '80s, Bigelow returned to WWE in 1992 and was given a strong push with a dozen squash match victories.
Bigelow eventually joined the Million Dollar Corporation and unsuccessfully challenged for the WWE Tag Team Championship. The peak of Bigelow's success in WWE came in 1995 when he started a feud with NFL player Lawrence Taylor and would go onto headline WrestleMania XI with the former New York Giants All-Pro linebacker, in a losing effort.
Bam Bam Bigelow probably wouldn't have had the mainstream success as WWE Champion that others had at the time, but he at least deserved to be the Intercontinental or Tag Team Champion, but amazingly it just never happened. After Bigelow parted ways with WWE in 1994, he would wrestle for ECW, where he would become the ECW World Heavyweight Champion and Television Champion. He would also have some success in WCW.