I like xwOBA better because it also factors in whether the hit is a single, double, triple, etc whereas xBA is just the expected batting average and doesn't value an XBH hit more than a single.
Baseball Savant
baseballsavant.mlb.com
"By accumulating the expected outcomes of each batted ball with actual strikeouts, walks and hit by pitches, Expected Batting Average (xBA), Expected Slugging (xSLG), and (most importantly) Expected Weighted On-Base Average (xwOBA) tell the story of a player's season based on quality of and amount of contact, not outcomes.
Expected Weighted On-base Average (xwOBA) is formulated using exit velocity, launch angle and, on certain types of batted balls, Sprint Speed.
In the same way that each batted ball is assigned an expected batting average, every batted ball is given a single, double, triple and home run probability based on the results of comparable batted balls....
xwOBA is more indicative of a player's skill than regular wOBA, as xwOBA removes defense from the equation."
So let's look at the Indian's xwOBA's for last year. I like looking at percentiles instead of raw numbers because it shows where players rank against the rest of the league. The top three players in xwOBA last year were Belinger (100th percentile), Trout (100), and Yelich (99).
Here's where the Indians ranked:
Santana 87th percentile
Reyes 78
Hernandez 69 (with the Phillies)
Hosey 61
Lindor 47
Perez 41
Kipnis 33
Mercado 24
Bauers 9
The rest (Naquin, Luplow, Allen) did not get enough at-bats to qualify for a ranking.
My first impression is that Cesar Hernandez had a better year at the plate than anybody on the Indians except Reyes and Santana. Wow, I didn’t expect that. Looking at the difference between his ranking (69) and Kipnis (33) I’d say we just got a lot better offensively at second base.
My second impression is that Jose Ramirez had a pretty bad year if he was only in the 61st percentile. Looking at 2018 and 2017, Hosey’s ranking was 87 and 77, respectively. That huge slump he had the first three months had a big impact. He should bounce back this season, short as it is.
My third impression is that 9 of 10 batters did better than Jake Bauers. He was by far the worst hitter on the team. Trading Yandy Diaz for him is looking like a big mistake. Yandy ranked in the 77th percentile last year.
I was surprised Mercado was only in the 24th percentile. Tito had him hitting second, which is where you’re supposed to put your best hitter according to analytics. Mike Trout hits second for the Angels.
Reportedly Hernandez will hit high in the order this year, so we could see him hitting second and Oscar getting dropped to the bottom third of the order.
Finally, I was shocked to see Lindor only in the 47th percentile, meaning he was a slightly below average hitter last year. I have some thoughts on that but will save them for another post since this one already has a lot to digest.
The Indians should be a much better offensive team this year if we give all of Kipnis' at-bats to Hernandez (we will), Hosey gets back to his 2017-18 form (he should), and Lindor bounces back from the worst season since his rookie year in terms of xwOBA. Also, giving Bauers' 372 at-bats (WTF Tito???) to Naquin, Luplow, and/or Domingo Santana (69th percentile last year) will help immensely, along with getting Mercado out of the #2 spot in the order. We did lose Puig's half-season, but he was only in the 53rd percentile so no biggie.