In order to fairly compare the stats of different players, one must first understand what each stat is measuring. The most common and important baseball statistics are batting average (AVG), on-base percentage (OBP), slugging percentage (SLG), earned run average (ERA), walks plus hits per inning pitched (WHIP), and fielding percentage (FPCT). There are also sabermetric stats like weighted on-base average (wOBA) and wins above replacement level (WAR) that attempt to measure a player's all-around contribution to their team.
Now let's take a look at how some of the top players in the league stack up in these categories. For batting average, Jose Altuve of the Houston Astros leads the way with a .346 AVG. He's followed by Charlie Blackmon of the Colorado Rockies (.331 AVG) and Paul Goldschmidt of the Arizona Diamondbacks (.325 AVG). As for on-base percentage, Joey Votto of the Cincinnati Reds owns a .428 OBP which is well ahead of second place Mike Trout of the Los Angeles Angels (.419 OBP) and third place Miguel Cabrera of the Detroit Tigers (.395 OBP).
In terms of slugging percentage, Giancarlo Stanton of the Miami Marlins holds a slight edge over Joey Gallo of the Texas Rangers and J.D. Martinez of the Boston Red Sox with his .631 SLG. On ERA, Justin Verlander of the Astros once again comes out on top with a 2.52 ERA while Jacob deGrom of the New York Mets isn't far behind at 2.68 ERA. In WHIP, Chris Saleofthe Red Sox has an impressive 0.86 WHIP while Clayton Kershawofthe Dodgers is right behind him at 0.88 WHIP. Finally, Andrelton Simmonsofthe Angels leads all fielders with a .989 FPCT followed by Freddy Galvisofthe Padres (.987 FPCT) and Adeiny Hechavarriaof Tampa Bay Rays(0 986 FPCT).
As you can see, there are many great players across MLB who excel in different areas. To get a true sense of who is better, it really depends on what you're looking for in a player as well as your own personal preferences.