I kind of like the 50s building as well, especially because it is quiet and pretty close to the main hall but not too close. This year we are going to check out the 80s building...I LOVE everything 80s! Our first year staying at POP we actually stayed at the 60s and it wasnt nearly as quiet as the 5os, although very convenient to the main hall. Here is a link to the resort map if you want to check it out.
Disney's Pop Century Resort Map - wdwinfo.com