The best replacement for pitchers is hitters.

The best alternatives to pitchers are rated as following:
★★★★★  hitters
★★★★  batters
★★★★  teams
★★★  right handed batters
★★  quarterbacks
★★  lefty hitters
★  barry bonds
★  pimms
★  right handed pitchers
★  left hand pitchers
★  right handed hitters
  left hand batters
  cricket bowlers
  jugs

Your alternative for pitchers is not listed? Suggest!
Speaking about pitchers, one probably shouldn't forget about 300 wins.

Other search terms related to pitchers and their ratings are:
★★★★★ 300 wins
★★★★ no hitters
★★★★ multiple no hitters
no hitter
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Google Trends

Scale is based on the average worldwide traffic of pitchers in all years. Click on graph for more.
pitchers
hitters
batters