Yes, absolutely use the DEV rig. That's exactly why it's there. There's a whole bunch of "way easier" built into the DEV.

1. It's just a little thicker. That makes it closer to the actual size of most clothes so the weights will copy better. Less manual touch-up on weight maps.

2. It doesn't have all the dependencies. If it did JCMs and Morphs could double up when conformed. You don't need to clean that out of clothes.

3. It has no IK. Clothes can't have IK. You don't have to remove it.

4. It's more polygon dense. That means more reference vertexes when copying joints and morphs. Less manual clean up, again.

5. Rig has already been tweaked to conform better that just a clone of the base figure. Even less touch up.

6. No ghost materials that need to be cleaned out.

7. Extra body parts not used for clothes are removed. (Eyes, face controls)

8. Body control chips removed. They're not used for clothes.

9. Probably more I forgot even though I just did l'Homme2's DEV rigs.