For our family of 5 (kids were 5,5,5), the only way we could afford to rent points was a studio. Any 1 br or up were outside of our price range. Our other option was going to be two rooms at Pop and hoping that they'd be connecting.
We were in a Boardwalk studio for 9 nights and would do it again in a heartbeat. Walking to EP and HS was incredible since we were completely on our own schedule and didn't have to worry about buses/boats/monorail at all. A big part of it was not having to manhandle our double jogger and single umbrella strollers on buses, but also not waiting for transport to come, worrying about how full it would be, etc.
It was cramped, but not as bad as I was expecting, to be honest. All of our luggage fit in the closet and on the space between the queen bed and the wall. The double jogger could stay open in the entry area. There was space next to the TV to push the extra chairs and coffee table aside and we left them there for the duration of our stay. Even with the sofa bed and the Murphy bed open, we had plenty of room to walk without bumping into furniture. When we were up after the kids went to bed or before they woke up, the balcony afforded us a good spot to talk, mess around on technology, etc without waking the girls. And, when the girls were getting rammy and the adults were trying to prepare for the day, we sent them onto the balcony with breakfast to get out of our hair. We weren't hanging out in our room, though. We were sleeping and showering in our room and otherwise at a park or the pool.
If given the choice between more space at a resort that's buses to all 4 parks or being a little jammed up but at BWV or BCV, I'd pick a studio on Crescent Lake every time. If you can afford both the space and the location, even better!