I've had excellent experiences with my Mavic wheels (Elites, SLs and Aksiums for road and Crossmax SLs for MTB). They've held up well and I have no issues with the stiffness of them. The SLs, to be fair though, suck in a crosswind.

That said, I have heard great things about Easton's, and given that the Easton's are new I would go with those.

And SilverSX, if the lateral stiffness of your Elite's suck so much, why use them as a crit wheel, where lateral stiffness is most needed through corners?