Some evaluators believe the Dodgers should be No. 1, given the presence of Clayton Kershaw and Zack Greinke at the front of the rotation and some interesting investments at the back.
But the Nationals' depth is staggering. Four of the top 16 qualified NL pitchers in terms of ERA in 2014 were in the Washington rotation, and the one Nats guy not in that 16, Gio Gonzalez, had a respectable 3.57 ERA. Washington's rotation ERA of 3.04 was the best in the majors last year, and the group held opposing hitters to a .657 OPS, also the best mark in the bigs.
Jordan Zimmermann is headed toward a nine-figure payday, thanks to his dominance, and somehow Stephen Strasburg has become underrated because of the perception of what he hasn't accomplished.