I've been at both, for what it's worth. The greenery level is about the same. I did not find the convention aspect of CS in any way disturbing. The convention attendees seem to remain in areas of that resort that you rarely see. You would occasionally see people in suits walking around, but people in suits just contributes to the overall impression of an upscale resort.
The biggest noticeable difference is size. POFQ feels tiny and CSR feels very large -- mostly because the resort is situated around a good-sized lake. It is a truly beautiful resort. CS feels upscale and sophisticated. POFQ feels cozy and quaint. Both are wonderful in their own ways. Just depends on the feeling you want.