Hmm yea I can see how you would be frusterated not getting a reply after a week. That's waaaay to long IMO.
It took us about a month, I think to narrow it down to a specific resort. I knew we both wanted Nuevo Vallarta (PV) the problem was which resort. There were 3 that we were choosing from and I think I used tripadviser alot o read peoples good and bad reviews to see if it was for us.
I also made up an excel sheet of the wedding packages each resort had and compared their prices on everything from wedding fee, chair fee, champagne fee, dinner fee, photographer, length of stay at resort etc etc. Then we sat down and decided which one was for us and our guests.
Hope this helps if you need any assistance PM me.