Does anyone know some good places available through RCI weeks exchange in New York and/or Mexico?
Which areas of Mexico? and New York?
Normally I'll go through the RCI Resort Directory to see the complete list (even if they aren't readily available), and then rule out anything not "Gold Crown", and then look up the remainder on Trip Advisor.
Also, note that at least with RCI, a *lot* of the Mexican resorts are mandatory AI, which is not, IMO, a good deal at all. You're better off just getting those directly or via cheapcaribbean.
But you really want to narrow down the geographic location, IMO. Unless you're totally open to anything for a particular week/month. Common places in Mexico would be Puerto Vallarta/Nuevo Vallarta, Cancun, Playa del Carmen/Riviera Maya, Cabo san Lucas. There's others like Mazatlan and Accapulco as well.
For us it's more how much do plane tickets cost, and what time of year. Personally I don't want to go to Cabo/Puerto Vallarta during Jan-Feb (when it's cold in New York) because the water temps in Mexico on that side of the country during that part of the year are too cool for my liking. I prefer the Caribbean side of Mexico (oh, forgot about Cozumel). But maybe ocean/beach isn't your thing.
There's some sub-forums on this site for Mexico and North East as well if you want places.