The CR is the resort which draws the most extreme responses. Some love it, some loathe it. I love it, but keep in mind: it lacks the tranquil air of the Poly, WL, or the Epcort Resorts. It feels like a bustling big-city hotel with a Disney ambience. You'll feel like you're in the middle of the action - and you are.T
The North Garden Wing is closest to the MK; the South is closest to the pools. Both are decorated the same and offer the same views. Only first-floor rooms offer patios, so if you must stay in one of the wings I suggest requesting a first floor. If you get a first floor patio overlooking Bay Lake, you'll have an unparalleled tranquility. Imagine enjoying morning coffee listening to the loons and boat horns, or a nightcap with same!
The longest walking distance from the farthest Wing room to the Tower is three or four minutes. A roof connects the wings to the Tower, so you will not get wet.
To sum up, the Wings will meet your needs. The CR has the largest rooms at WDW, both in the Tower and Wings....just remember, try and get a first-floor room (and even better, facing Bay Lake) if at all possible!