Trying to save weight on spokes is just stupid - it does nothing in the real world and only impresses people who don't know enough to be worth impressing. Just go with the 32 and be done with it.

Both are good components but the DeepVs are a heavy rim and you will probably notice your bike feeling a bit dead. On the other hand, they are bullet proof, pot hole proof and can no doubt survive being run over by an Abrams battle tank. Not a bad choice for a hard working street bike.

The MOST important thing in getting a strong wheel is how it's built. Although experienced wheel builders can get away without using a tension gauge, I recommend using one. Make sure the tensions are even and tight and your wheel will last forever ... or until some git in a battle tank runs over you.

Have fun. Building wheels is THE most satisfying job in bike mechanics.