These are the best hitters for every type of pitch

Pitchers had the upper hand in 2018, racking up more strikeouts than hits allowed for the first time and held hitters to a .248 average. But so many Major League games can come down to the cat-and-mouse game of pitch selection, and pitchers still need to know which hitters can hurt them if they throw the wrong pitch.
Statcast™'s watchful eyes help us determine which hitters crush which pitches better than ever before. We could cull all sorts of traditional statistics, like average, slugging or homers, from the Statcast™ data trove to drum up rankings, but we're going to use expected weighted on-base average (xwOBA) -- just as we did last year -- to try to give the most comprehensive look at who excelled against what. Just in case you're not familiar, xwOBA is Statcast™'s all-in-one metric that considers strikeouts, walks and quality of contact (exit velocity and launch angle).
Setting a minimum of 200 pitches seen for fastballs (four-seamers and two-seamers and sinkers combined) and 150 for secondary pitches (cutters and sliders, curveballs, changeups and splitters) creates a pool of between 200 to 400 qualified hitters for each pitch type. Here's who excelled against each offering:
Four-seam fastballs

.538 -- Luke Voit, Yankees
.504 -- Mookie Betts, Red Sox
.493 -- Matt Kemp, Reds and Mark Trumbo, Orioles
.491 -- Juan Soto, Nationals
MLB average: .347 xwOBA
Voit's first two months with the Yankees (.322/.398/.671, 187 wRC+) could be described roughly as an "out-of-body" experience, but his underlying Statcast™ metrics did suggest some potential for staying power this season. Like many young hitters, Voit feasted most on fastballs, but he wasn't exactly a slouch against secondary pitches either (.332 xwOBA against breaking balls, .457 against offspeed).
Betts was phenomenal across the board en route to his first American League MVP, but he particularly improved at jumping on fastballs and pulling to left field. Trumbo had a tough, injury-riddled 2018 (though his 110 OPS+ was perhaps higher than you remember) but could still hit a four-seamer, and Kemp was one of baseball's best fastball hitters during his resurgence last year. One of Soto's most impressive homers was his retroactive "first" dinger off a 97-mph heater from Yankees reliever Chad Green.

Two-seamers and sinkers

Video: TEX@OAK: Davis gets jersey signed by kid, hits HR
.551 -- Khris Davis, Athletics
.505 -- Gleyber Torres, Yankees
.483 -- Rhys Hoskins, Phillies
.480 -- Carlos Santana, Indians
.473 -- Bryce Harper, free agent
MLB average: .349

Here's a tip for AL West pitchers: Shelve the sinker when Khrush comes to the plate.

Sixteen of Davis' 48 homers came off this pitch type, ranging from everything from a 97-mph two-seamer from Garrett Richards to an 86-mph pitch from Bartolo Colon. The Oakland slugger averaged a scorching 97.4-mph exit velocity against two-seamers and sinkers and barreled that pitch type six more times than any other hitter in baseball.

Torres homered 12 times off two-seamers and sinkers, including an opposite-field blast off David Price in July. Hoskins and Santana forced sinkerballers to tread lightly through the Philly lineup, and Harper's sinker damage included his 451-foot, game-tying blast off Cardinals closer Bud Norris on Sept. 3. 
Cutters and sliders