Player (K/9, BB/9, HR/9, GB/FB, SIERA)
Wood (6.25, 3.00, 0.63, 0.83, 4.49)
Leake (6.46, 2.15, 0.86, 1.76, 3.85)
Leake is actually having a better season than Wood if you look at all the peripherals and remove the obvious signs of luck. The biggest (and possibly only) reason that Wood's ERA/WHIP is so good is his .214 BABIP (.314 for Leake). That's really it in a nutshell. Heck, even the "more hittable" narrative isn't true...
Swinging strike%
Wood (8.0%)
Leake (8.4%)