BonkTastic
ಠ_ಠ
Wins Above Replacement: History, Philosophy, and Objectives (Part 1)
also a part 2 and part 3, and explanation for other stats on that site.
Oh, I grew up a Baseball fan, I'm intimately aware of what War is.
I've also read that site thoroughly. I wanted you to tell me why it's a good stat, in your own words, rather than regurgitate someone else's theory, so that you cpuld show a basic understanding of what it is trying to do, rather than adhere to it blindly because someone once told you it's a good stat.