Hi Melissa,
While our family loves POR, and it would be my choice to stay at, we've also tried CSR, and I'd highly recommend it also. If I were in your shoes, I probably wouldn't try too hard to change my ressies; We loved the food court at CSR, and the kids loved the pool. I think things seem a little more spread out at CSR, and we saw a few more people in suits than we're used to at Disney (due to the convention that was there at the time), but the beauty of the resort and the fact that there's a health club right there more than made up for it.
Unless CSR really doesn't appeal to you, why not give it a try?
Good luck with your decision,
Ric