My DH and I are going to Disney for our 25th in Aug and decided to stay at the CR. We have stayed at many of the monorail resorts and found that the monorail hotels are perfect for us. Obviously, when our kids were younger, the monorail hotels were great because you did not have to fold your carriages to and from the parks. Anywho, here are some of our reasons why we prefer CR:
Monorail access - crowds at the busses can get really huge. DH hated taking the bus, he felt like herd. When he was tired, he wanted to either get in his car or hop on the monorail back to the hotel.
Proximity - we feel that the monorail hotels are central to all the parks. You can hop the monorail to Epcot, take a boat to MK (or walk from the CR) or for us, drive to any other park with free parking.
Convenience - Sleeping in a little longer, hopping back and forth from the MK, simple self parking lots. From the CR, you can walk (about 10 minute) right to the MK and avoid the monorail if preferred.
Food - we love the Ohana breakfast (short monorail ride to Poly), the California Grill, Waves (all at the Contemporary). We do like Narcooses and Citrico's when we purchase the dining plan (again short monorail ride and if you have a few drinks, your not far from your hotel room nor do you have to wait in long lines for a bus or drive your car)
Fireworks and Lagoon Parade - you can watch the fireworks or view the water parade from the CR resort OR your hotel room with piped in music.
Jogging Trails - I like an early morning run and the CR has a beautiful scenic jogging trail. It is 1.5 miles (so back and forth it is a 3 mile run, just perfect to start my day). I enjoy watching the morning crew get ready for the day as I run past the entrance of the MK and the lake. Not sure what the WL has for running trails so I cannot comment on that.
We have stayed in the Garden Rooms as well as the Tower. I prefer the tower, felt more Disney magic to step out of my hotel room and overlook the activity going on below me. I am a light sleeper and NEVER heard a thing except for the waterparade music.
As another poster said, why not split your stay? This way you can experience the magic of both. Good luck and let us know what you decide. Lisa
