AKV concierge and value rooms are difficult to book as there are not as many of them.
SV rooms at BLT and BWV as well as BW view rooms are not easy and neither is but depending on the time of year, definitely possible. I just got a BW view room 2 bedroom at the 7 month mark.
Easiest to book are probably rooms at OKW and SSR as they are big resorts so have the a lot of rooms to fill needs.
It also depends on when you call--calling at 11 months can get you something that can not be gotten at 8 months.