Since you say the pool is the most important thing to you, CSR wins hands down.
However, we jusr returned 2 weeks ago from a 1 night stay at CSR, then 5 nights at OKW.
I didn't care for CSR at all. It was much too spread out and I didn't like having just full size beds. It's a small thing, but what really bothered me were the un-airconditioned elevators! I don't know if they just don't have AC or if it was broken, but they were hot and smelled bad. We didn't care for the food court either. I thought it was expensive and not very good. I also didn't care for being forced to tip no matter what the quality of service is! We didn't use the transportation there, but I've never heard anything particularly bad about it.
We really enjoyed OKW. We had a 2 br villa and they're huge! We only had 4 in our group, but the extra bathroom plus the privacy was great. We did use the kitchen quite a bit...some people like to eat in and some don't so that may or may not be a plus for you. I was one who swore I'd never touch a washer on vacation, but I have to admit it came in really handy a couple of times. The only big negative I found at OKW was the bus system. The busses, especially in the mornings, were very late in getting there.
For me, there wouldn't be a choice, OKW over CSR any day of the week. For you though, CSR sounds more like what you want.