#5. Worst - The Big Show
Big Show is a 5-time WWE World champion. He has won the WWE Championship twice, the World Heavyweight Championship twice and the ECW Championship once. Although The World's Largest Athlete has achieved world championship success, not all of his world title reigns were memorable.
Big Show won the WWE Championship the same year he debuted in WWE, and his title run was quite disappointing. His run wasn't as memorable and exciting like that of The Undertaker, Stone Cold Steve Austin, and The Rock. He went on to capture his second WWE Championship by defeating Brock Lesnar at Survivor Series in 2002.
Show won his first World Heavyweight Championship title in 2011 when he defeated Mark Henry at WWE TLC. After the match, Henry knocked out Show with a DDT on a steel chair. This allowed Daniel Bryan to come in and cash-in his Smackdown Money in the Bank briefcase, defeating Big Show for the world title.
This gave Show the shortest-ever World Heavyweight Championship reign at only 45 seconds. His second reign wasn't as memorable either. From what he achieved in WCW and his early days in WWE, his run as World Heavyweight Champion was lacklustre and unimpressive.