Right now the Las Vegas Strip property has the lowest maintenance fees. And that's the key since you'll be paying them annually for the rest of your life. Pay a little more on the purchase price (one-time cost) if you can find lower maintenance fees.
This was true pre-KL. Higher point KL Phase 1 are the lowest MF fee/pt overall (from 2014 fee thread):
Anderson Ocean Club 1 BR Plus Gold 4,200 $771 $0.18/pt
Anderson Ocean Club 2 BR Plat 8,400 $1,106 $0.13/pt
Anderson Ocean Club 3 BR Plus Plat 9,600 $1,263 $0.13/pt
57th St 7,000 $2006 $0.29/pt
57th St 11,000 Plat $1,319 $0.12/pt
Parc Soleil 1 BR Plat 4,800 $932 $0.19/pt
Parc Soleil 2 BR Plus Gold 5,800 $1,221 $0.21/pt
SeaWorld 1 BR 4,800 $825 $0.17/pt
SeaWorld 2 BR Gold 5,000 $1,043 $0.20/pt
SeaWorld 2 BR Plat 7,000 $1,196 $0.17/pt
SeaWorld 3 BR Plus Gold 5,800 $1,221 $0.21/pt
Seaworld 3 BR Plat 8,400 $1,362 $0.16/pt
Tuscany Village 1 BR Plat 4,800 $914 $0.19/pt
Tuscany 2 BR Plat 7,000 $1,243 $0.18/pt
South Beach 1 BR Plat 4,800 $1,107 $0.23/pt
Flamingo 1 BR Plat 4,800 $938 $0.22/pt
Flamingo 2 BR 5,000 $1,018 $0.20/pt
Flamingo 2 BR Plat 7,000 $1,018 $0.15/pt
Las Vegas Karen Ave 1 BR 4,800 $776 $0.16/pt
Las Vegas Karen Ave 7,000 $1029 $0.15/pt
Las Vegas Strip 1 BR Plat 4,800 $701 $0.15/pt
Las Vegas Strip 2 BR Plat 7,000 $913 $0.13/pt
Las Vegas Strip 3 BR Penthouse Gold 7,000 $1,116 $0.16/pt
Las Vegas Plat 7,000 $1,029 $0.15/pt
Lagoon 2 BR Premier Gold 7,000 $1,583 $0.23/pt
Grand Waikikian 2 BR Premier Platinum 14,400 $1,622 $0.11/pt
Kingsland 1 14,400 $1,623 $0.11/pt
Kingsland 2 BR Prem Plat 14,400 $1,759 $0.12/pt
Kohala 2 BR Platinum 7,000 $1,603 $0.23/pt
Bay Club 2BR 7,000 $1,454 $0.21/pt
Planation Beach Club 1BR Gold $1,347
Elara 1 BR Grand Plus Gold 5,500 $957 $0.17/pt
*Incl HGVC Club Fee and Voluntary ARDA fee