Biased a bit, being a Boardwalk owner, but in general I prefer views so I definitely have a preference for Boardwalk. Beach Club villas mostly look at trees, other sections of the building, etc. Some high floor rooms can see over trees to fireworks if facing that way. I prefer the Boardwalk view rooms overlooking the main lake and boats/boardwalk activity, or the garden/pool view rooms which overlook the river, DHS, Swan and Dolphin resorts, etc. Even some standard view rooms at Boardwalk have more wide open views over the front entryway to canals, DHS, and fireworks from some higher rooms.
The view thing is more about having 'space' - seeing out for a fairly long distance over parks, pools, canals, lakes, etc - vs having trees or other buildings within 50-100 feet...I've never been a fan of rooms that have a building across from them, where your view are other people on their balconies...or woods views where the trees are so close that there's really no view of the sky or horizon (part of why I dislike ground floor rooms).