Well I split the difference. I use clipless on the right and platform on the left. I like being able to pull the pedal up at stops, but also don't want t have to unclip on the left when I stop. So a pair of A530 pedals works well. The only bad thing is that in the rain I sometimes slip off the left pedal.....who want to ride in rain anyway. Interestingly, I only ever get soreness in my left knee, and then only when I ride my single speed and mash up hills at using 67".