If you have not yet seen this thread, check out the hotel links for distance info - "HydroGuy's Hotel Rule"
www.disboards.com/showthread.php?t=1199862
I haven't stayed at the CCI - lots of others around here have. They seem to have a very reliable shuttle which is essential in my mind if you want to depend on shuttles. Plus, it is not too far a hike to walk to CCI if you must.
If you stay at the Harbor hotels, of which BWPPI is the closest but there are others almost as close - you will have no need to depend on shuttles at all.
Other hotels offer shuttles, and from what I read they are a mixed bag as far as reliability.
Not sure if you are a WDW vet, but I advise all WDW vets not to bring their WDW thinking to DLR - at least in this area. WDW thinking includes acceptance of waiting for transportation and shuttles, or driving your car to the parks. Even staying a mile away from DLR seems to be OK with some WDW vets.
If you do this you give up one of the huge advantages DLR has over WDW - nearby walking distance hotels - and also burn up time waiting for transportation. Some people respond that they used ART or some hotel shuttle and it worked out great. But for every one of those reports there is another about lots of wasted time waiting for transportation.
Again, CCI seems to have built a good reputation here, but I do not know of any others who have that reputation.