More expensive but maybe worth it for you is Casa Cupula. casacupula.com
Cheaper options are Hotel Abbey, their site refers you to this email:
Abbey is basic but very close to Playa Los Muertos, aka Blue Chairs, the gay beach.
Blue Chairs Hotel is on the beach and a center and entertaining always
Hotel Mercurio http://www.hotel-mercurio.com/
is probably closest to all the bars.
Puerto Vallarta is gay friendly, all the way, so you really don't need to stay at a gay hotel but if you do, the above are pretty good.
Oooops, almost forgot one great place: Torre Malibu http://www.boana.net/
Really cheap and a huge pool.