Doubt it's the pedals, because as was mentioned both sets of pedals do the same thing.
Bike has never taken a fall as long as we've had it. Crank arm bent out of the box? I wouldn't even doubt that for a second. I really hate the look and feel of the steel crank arms on this bike. When turning the pedals, the chain rings and everything seem to wobble both laterally and radially. The RD jockey wheel arms move fore-aft constantly due to the radial wobble of the chain rings, and the chain seems to always touch one or the other FD plate at some point in the rotation because of the lateral wobble.
Could any of that wobbling be coming from the BB itself? Just wondering if I would need to replace that in addition to the crankset.