#1 - The fifth entry (6 wins - 2003, 2006, 2008, 2009, 2009, 2015)

There is much that can be considered luck inside the Elimination Chamber, but the lucky entrant number is fifth as it has the most wins in the 20-match history of the match with a total of six victories.
Triple H is the King Of Kings, but he is also king of the Elimination Chamber with the most victories all-time with four. Three of those victories (2003, 2008, and 2009) came from the fifth entry.
The only time that Triple H didn't win from the fifth position was at New Year's Revolution in 2005 when he was the third entrant.
The other three wrestlers to win from the fifth position include Bobby Lashley at ECW's December to Dismember in 2006, Edge also won from the 5th position at No Way Out in 2009, and Ryback in 2015 at the Chamber Pay Per View.