I think overall cushioning will be better than canting. For example I have 2 pairs of K2 Formulas that have canting, but mostly plastic baseplate. On the other hand my NOW IPO's don't have any canting whatsoever, but the great minimal baseplate and cushioned footbed works great. My knees like the IPO over the Formulas.
14 NeverSummer Proto HD . 13 Never Summer Cobra . 12 Gnu Rider's Choice C2PTX
13 Now IPO . 12 K2 Formula . 11 K2 Formula
13 NB x 686 580