ms.ojo, I may have answered this when you posted in the other thread, but I can't remember, and I can't find the thread! So at the risk of duplicating - We stayed in Jamaica 45 and could view both Wishes and Illuminations from our second floor walkway. I imagine you could from any first floor walkway as long as it faced the road on that side of the resort, it just helps to be up a bit higher. The trees block the lower pyrotechnics, but you can see anything that has any height. I understand the view from the beach in front of Martinique is good as well, we just never watched from there.
There are seven bus stops. I had heard that Jamaica was usually the first and last bus stop, but that wasn't always the case during our stay. When we were returning to the resort at the end of the day, we entered the park by the Custom House and went counterclockwise. Sometimes the buses seemed to enter the resort from the side road just above Jamaica, making it the first stop. Other times, the buses seemed to have come from the Custom House entrance, as they had other passengers already. We found that the buses came very frequently and we rarely waited as much as ten minutes. There is also an internal bus that just makes laps around the resort, if you don't want to walk.
We've never stayed in Aruba, but if you want to be close to Old Port Royale without paying for a preferred room, request the Aruba Building that is closest to Jamaica (consult the map - I think there's a link on safetymom's FAQ site). That will put you almost directly across from the end of the walkway across the lagoon to OPR. If you look at the map, that's just about as close to OPR as some of the outer buildings in Martinique. We found our Jamaica location to be very quiet and peaceful, and I'm sure Aruba would be the same.