The Lange 1 will feel like hit has more substance. It's a heavier piece with crisp finishing. The dial design with big date is always impressive to look at. The CS on the other hand is equally impressive but has a completely different feel. In addition to superior craftmenship the watch is filled with artistic creativity typical of all Journe pieces. The location of the power supply, the smaller 7 & 8 hour markers near the subdial, the ribbed crown and mezmerizing rose gold movement. You are not the first person to debate between Lange and Journe, or a Lange 1 and CS.
Are you considering the PT or RG CS? Which Lange 1 combination?