to the DIS and the BWI thread, bwifan!
Since you are staying club level, all you have to do is email the IPO (Itinerary Planning Office) and request that your Deluxe room be on the 4th floor. Half of them are so you have a 50% chance even without requesting it. The BWI IPO will then email you back that they have added your request to your reservation. When you check-in, just ask where your room is located. If for some reason it's not on the 4th floor, ask if you can be moved there.
The IPO's email address is:
Boardwalk.Itinerary.Planning@disneyworld.com
Make sure you include your confirmation number in the subject heading.
I hope you have a great stay at BWI!
Didn't i read somewhere that there are only 6 deluxe club rooms? 3 on the 3rd and 3 on the 4th? either way we stayed on the third floor in feb and had no complaints with it. the extra room in the deluxe more than makes up for going up the the stairs. Although you would think they would spruce it up a bit knowing that is a thoroughfare for people who paid to be club level.