A while ago someone posted the following listing number of rooms per resort. It is pre-BLT. Since you want a 1BR, I think your best chances are at SSR (432), AKV (500 although I don't know if these are all part of inventory yet), and OKW (230).
If it were me, I'd wait list SSR and AKV. If one of these came through, then waitlist BWV or BCV.
OKW - 0 Dedicated Studios - 0 Dedicated 1Bdrm - 274 Dedicated 2Bdrm - 230 Lockoffs - 27 Grand Villas = 531 Units / 761 Max. Available Rooms
VB - 0 Dedicated Studios - 0 Dedicated 1Bdrm - 18 Dedicated 2Bdrm - 36 Lockoffs - 6 Grand Villas - 112 Inn Rooms = 172 Units / 208 Max. Available Rooms
HHI - 0 Dedicated Studios - 0 Dedicated 1Bdrm - 76 Dedicated 2Bdrm - 21 Lockoffs - 5 Grand Villas = 102 Units / 123 Max. Available Rooms
BWV - 97 Dedicated Studios - 130 Dedicated 1Bdrm - 0 Dedicated 2Bdrm - 149 Lockoffs - 7 Grand Villas = 383 Units / 532 Max. Available Rooms
VWL - 20 Dedicated Studios - 27 Dedicated 1Bdrm - 44 Dedicated 2Bdrm - 45 Lockoffs - 0 Grand Villas = 136 Units / 181 Max. Available Rooms
BCV - 36 Dedicated Studios - 20 Dedicated 1Bdrm - 78 Dedicated 2Bdrm - 74 Lockoffs - 0 Grand Villas = 208 Units / 282 Max. Available Rooms
SSR - 0 Dedicated Studios - 0 Dedicated 1Bdrm - 360 Dedicated 2Bdrm - 432 Lockoffs - 36 Grand Villas = 828 Units / 1260 Max. Available Rooms
AKV - 46 Dedicated Studios - 0 Dedicated 1BR villas - 140 Dedicated 2BR villas - 250 Lockoffs - 22 GVs. 134 villas within Jambo House at AKL (46 Ded.St, 82 Lockoffs, 6 GVs) and 324 villas in Kidani Village (opening May, 2009) (140 Dedicated 2BRs, 168 Lockoffs, 16 GVs) for a total of 458 Units / 708 Max. Available Rooms.