In 2015, Dallas Keuchel won the Cy Young Award, cementing himself as a certified ace in Major League Baseball who shot up this list astronomically from that 2015 campaign.  Keuchel did not repeat that season’s accomplishments with the Astros, but he was an All-Star for the second time in 2017, where he had a 14-5 record and a 2.90 ERA.  His run with the Astros ended when he signed with the Atlants Braves as a Free Agent.  With Houston, Keuchel would have a 76-63 record with 945 Strikeouts.

Known for his very keen batting eye (he is one of the few players in MLB history to record more Walks than Hits in a full season), Morgan Ensberg had a breakout season in 2005, where he was an All-Star, A Silver Slugger and finished 4th in MVP voting.  He never replicated that campaign, however, but did make his mark in Houston with 551 Hits with 105 Home Runs.

Improving offensively with each passing year, Rusty Staub debuted with the then named Houston Colt .45’s and before he left for the Montreal Expos, he would make two All Star with the Astros.  Staub’s final three seasons in Houston saw him go over 150 Hits and in 1967 would lead the NL in Doubles while batting .333.  Had Staub just been an average defensive player his ranking would have been much higher.

With Houston, Staub would accrue 792 Hits and a .273 Batting Average.

Mike Hampton might be best known for his overpriced contract with the Colorado Rockies but the Houston Astros, he is known for his Cy Young runner up season in 199 when he went 22 and 4 with a 2.90 ERA.  Hampton never had a losing record for the Astros (in his first run anyway) and had a respectable 76 and 50 with Houston.