Sorry I thought your argument was who is our best OF right now, not in the past? You're right Pillar has been better over the past 4 years, as 4 years ago in his prime he put up a 3.7 fWAR season. However, I think with their age and skill set it is pretty clear Grichuk is the more valuable player right now and moving forward. I'd even be willing to make an fWAR wager for this season injuries included if you're interested.