Highest OBP in a season, 2005-2015
1. TIE - Bryce Harper, .470
1. TIE - Chipper Jones, .470 (2008)
3. TIE - Joey Votto, .462 (2015)
3. TIE - Albert Pujols, .462 (2008)
5. Miguel Cabrera, .448 (2011)
Highest SLG in a season, 2005-2015
1. Bryce Harper, .674
2. Albert Pujols, .671 (2006)
3. Derrek Lee, .662 (2005)
4. Ryan Howard, .659 (2006)
wOBA, same deal
1. Bryce Harper, .474
2. Albert Pujols, .459 (2008)
Other Bryce Harper 2015 rankings, among all hitter seasons 2005-2015
wRC+ : #1
BB%: #7 (and #1 in the past 4 seasons)
BABIP: T-16th
WAR: #3 (and on pace to possibly finish the year at #2)
This is the best season any hitter has had since Barry Bonds. Period. To compare, Bryce Harper is hitting about 10% better (wRC+), in general, than Albert Pujols hit in Pujols' best season.