I can't vouch for the others, but the guys at Skydive Vallarta are great, though you'll only jump if there's space on the load with the tandem(s). They use either a 182 or 206. Its not the place for getting loads of jumps in, but the resort is really nice anyway, so it depends what you want! The other operation in Vallarta is sporadic at best, and I don't even think have been operational while I've been (go a lot with work). I can't work them out, but they'll only be there if there's a boogie or something I think- don't be fooled by their website showing a nice shiny turbine