You have to weigh the road noise against the view of Illuminations. We were there August 17-24 and had a studio Epcot view one night and a 2 bdrm lock off wetlands view the rest of the week. Both rooms were on the 5th floor. The view of Epcot at night was awesome, but the noise from the road is constant until after 12am and the Epcot view rooms are very close to the road! The view during the day however is of the back of buildings and not really anything to look at. You can see the ball and the back of Candada (which is under construction) and some of England and France. The main view is the roof of a maintenance building of some sort. (Maybe this is the Millinieum Village building??) Anyway, it's not pretty. My three year old DS and I sat out and watched Illuminations and we loved it.
The rest of the week we had a view of the wetlands and the back of the Beach Club. Over the top of the buildings you can see the Swan and the Dolphin lit up at night as well as some of the lights from the Boardwalk. I found this view to be very pretty also and it was nice to look at any time of the day. Two more things to think about, I think you can only see Illuminations from the 5th and possible the 4th floors, but you can hear them everywhere. I don't know what a pool view would be like and some other rooms face the walkway to the villas, not very private. Hope this helps. We had a great time and I loved being at the BCV!!!!