If ride quality is similar for both wheelsets, you'll benefit more from the deeper section wheels on mostly flat terrain. And even if you do find yourself climbing, you won't be at a big disadvantage. Lightweight climbing wheels only really shine when the road is steep and long, like if you lived in the Alps, where every ride is a climbing ride.
I'm running 48mm wheels on my V20c, I climb quite a bit, and they've been great. The 30mm Schwalbe Pro Ones have been ideal. (I did build these wheels to be flyweight. At a tick over 1400g for the set, they are lighter than the Ardennes, which is to say that if you want, you can have it both ways--mid-deep section climbing wheels).