You don't mention any criteria, so it's difficult to give you anything other than pros and cons.

But, here goes. . .
OKW
Pros: better theming, larger rooms, more laid-back, tropical vibe
Cons: have to use transportation pretty much everywhere, tropical vibe not for everyone
SSR
Pros: proximity to Disney Springs and golf course
Cons: minimal theming, tired furnishings
Neither is my favorite to be fair, but each has its own charm. If we were hitting the parks more, I'd likely say OKW, especially since we found the overall ambiance better. However, if you wish to get to DS a few times, having DS at a walking distance is hard to be. Even if you're buried in SSR, walking to DS isn't that tough. If you happen to get Congress Park, it's a snap. Good luck!