I just commented on another thread where the poster couldn't decide between the Port Orleans resorts and Caribbean Beach. Instead of retyping everything, I'll repost it here (with Coronado instead of Port Orleans). Here goes:
I can't comment on Coronado Springs Resort as we haven't stayed there. I can, however, talk about the Caribbean Beach Resort as we have stayed there 8 times so far. Each of the resort villages has a bus stop so you're never far from one. We have been early, mid and late May (including Memorial Day and Star Wars Weekends) and early to mid August and we've never encountered any problems with buses. The buses do stop at the other resort villages before leaving the resort but it doesn't take long to make the resort loop. And, because the resort is centrally located, your ride to the parks are short.
The standard and preferred rooms have a slight Nemo theme and have plenty of storage. We are now a family of three but have gone as a family of four and had enough room to unpack 10 nights worth of clothing and "stuff". The rooms at the CBR are slightly larger than the other moderates and are 340 square feet.
Each resort village also has their own stretch of white sandy beaches complete with hammocks and beach chairs, a laundry facility and quiet pool. If you have to do laundry, you can simply walk over to the quiet pool area where the laundry rooms are located and then take a swim or play on the beach.
There is an island in the middle of the resort and there is a nice playground area for the kids and seating for the adults.
Old Port Royale is home to the food court, arcade, store and a concierge desk. Just outside of the OPR are the main pool, kids' water play area, hair wrap station, pool bar, hot tubs and the marina. Also outside are plenty of picnic and umbrella tables. At night, weather permitting, movies are shown in the OPR courtyard and a marshmallow roast is held on the beach.
The food court has a nice selection of foods to choose and serve breakfast, lunch and dinner. There's also a grab n go station that serves fresh pastries, fruit, packaged sandwiches, fresh veggies and an assortment of sweets and drinks.
I have lots of pictures of the resort in my trip report and I've posted many on the CBR picture thread. If you want to see some of them, simply click on the link in my signature below. If you have specific CBR questions, please feel free to ask.
Hope this helps.
They also have a 22 person hot tub. I also look forward to enjoying a cocktail one night in the hot tub. I think what sold me on CSR was the idea of having a little grown up fun on my vacation to make it a little more balanced since we will be at the parks with our kids all day. If you are into that sort of thing, you should try Jelly Rolls too. We had a BLAST there on our last vacation. 
