I don't know the exact number of each, but you can get a Boardwalk view no matter what type of room you book (studio, 1, 2 or 3 bedroom). All of the Grand Villas (3 bedroom units) have a BW view. AFAIK, all of the Boardwalk views are non-smoking.
Exact number I am not sure except for the 7 Grand Villas. Grand Villas and dedicated 1BR's and studios are intermixed beginning over the courtyard area, then around the corner going down over the entire merchandise store. Thereafter, over the Big River Grill and where the DVC store used to be, are the 2 BR's (which can also be 1BR and studio).