Thank you. Would we be better off just keeping the extra bed that we need and not worrying about the preferred room so we can request 45 and 51? I'm not so concerned with the view, more about the convenience to everything.
IMO, if convenience is most important to you, I would keep preferred. We've stayed twice, requesting 45 or 51 both times, and have never been lucky enough to get our request. On our most recent trip, I had requested 45 or 51 and was in Jamaica 42. Very close and convenient to the Skyliner, but not at all convenient to OPR or the main pool. Alternatively, if you decide to switch to a standard room, you could always request "close to OPR" so that the room assigner knows what's most important to you. By requesting 45 or 51, they may just try to get you close to that without considering you want proximity to the bridge.
I agree with PP that if you keep preferred and end up in Martinique, its a bit of a walk to the Skyliner. However, I think it depends on how often you'll be using the Skyliner to know if that's even an issue. For us, we used the pool and visited the food court more often than we needed to ride the Skyliner, so if we had to compromise on one, we'd rather have the hike to the Skyliner. Martinique is also close to Riviera, so you always have the option to use that Skyliner station, or even visit their QS.
IMO, there's not one ideal location at CBR that's close to everything, but preferred Barbados is about the best you can get. So I would keep preferred.