I can't speak to the Ritcheys specifically, but in my experience cyclocross tires aren't a really good bet for road riding.

They're designed for racing on the grass or in the mud. Thus, they have no (or very little) puncture protection, and the compound is very soft, so they wear quickly.

The Gatorskins, OTOH, will wear for 5,000 miles or more, and are known for their puncture resistance.

I ride Continental GrandPrix 4-Seasons in 25mm on the 4½ mile dirt and gravel jeep road to my family's summer cottage with no issues. My other bike, with 34mm cyclocross tires, is only a smidge easier to handle on the same road. Mainly I can corner a bit faster and they break loose less often when climbing out of the saddle.