8. Daniel Murphy
Daniel Murphy would be on this list with or without his heroic 2015 postseason performance. In his seven years as a Met he slashed .288/.331/.424 with 62 home runs and 402 RBI. He was a National League All-Star in 2014 and was one of the more consistent hitters the Mets have had. He could consistently be relied upon to hit around .300.
Murphy is seventh in franchise history in batting, third in doubles, and 12th in hits. He was consistently playing on teams without much talent outside of David Wright so to be able to put up these kinds of numbers is impressive.
While most of his years in Queens were on bad teams, Murphy was integral to their 2015 World Series run. His 2015 postseason run was one of the best in baseball history. In the first two rounds of the playoffs, he hit .421 with seven home runs and 11 RBI.
He hit home runs in six straight postseason games, something nobody had ever done. He hit homers off the likes of Clayton Kershaw (twice), Zack Greinke, Jon Lester, Jake Arrieta, and Kyle Hendricks. He was responsible for all three runs either by scoring or driving it in in a 3-2 win in Los Angeles in the winner take all Game 5 of the NLDS.
He had a rough World Series which is unfortunate but that obviously doesn't take away his performance in the first two rounds to even get them there. The NLCS MVP will always be remembered in a positive light for his time in Queens and is one of the best second basemen this franchise has had.