My wife and I own a 2016 Keystone Cougar 32FBS with bunk beds up front. This trailer has three slides: The bunk room, the living room, and the master bedroom.
The slide in the master bedroom is great because it does provide a good amount of room at the foot of the bed. We liked this model because of the slide in the master bedroom. We were looking for a trailer that had enough room that we could put a dog bed at the foot of the master bed for our dog (an 11 year old Greyhound).
The bunks in front provide a lot of storage area for us at this point. We have not used the bunks or that room as a bedroom just yet, but we will be next season as we now have a new grandson.
As far as sway, we have not had any issue whatsoever when towing this trailer. Needless to say we an anti sway "package".
Find what you think will meet your needs and go for it.