Building 1 in the 50s is convenient to parking too, and I've requested that building in the past when I've had a car. But as scappinginontario recommends, if you're traveling soon before the 50s gets the new rooms, you may want to request the 80s/90s section as you're thinking.
In my opinion the new rooms are the reason to stay at Pop, which was already my favorite choice before the new rooms.
For my visit last month, I requested 80s because I wanted a new room and I also had a car. I was in building 7 and it was perfect for parking, and we liked being near a pool.