#6 Vader
Vader changed the game for big men in wrestling as he was one of the few big men to perform incredible high-flying moves. Vader has an incredible legacy, having wrestled in NJPW in Japan, WCW, WWE, as well as several indie wrestling promotions across the world.
Although he was not particularly successful in the WWE in the mid-90s, Vader was one of the top men on WCW, winning the WCW World Heavyweight Championship thrice, as well as the WCW United States Heavyweight Championship.
Vader was a pioneer in the wrestling business, and has to be in the WWE Hall of Fame, and 2019 could be when he's inducted.
#5 Big Show
Like Vader, Big Show also made his name at WCW, before becoming a household name on WWE during the Attitude Era, and stayed relevant for the next decade or so, winning title after title.
A triple crown champion in the WWE, Big Show has won everything on offer at Vince McMahon's company, and is now helping younger talents rise up the ranks on WWE.
Big Show looks the fittest he has ever been in his life, but at 46 years of age, his in-ring career is almost over. He inducted Mark Henry into the Hall of Fame last year, and it would be fitting if the World's Strongest Man inducted Show into the Hall of Fame in 2019.