I agree, it is the hardest part! I am trying to pick a resort as well. I've narrowed it down to 5 different resorts.(Cabo-Dreams or Riu, Cancun-Dreams, Tulum-Dreams, and Playa Del Carmen-Royal) I have done the whole spreadsheet thing... If money wasn't a issue it would definatley be a little easier. I think now it is coming down to which one has an opening in November or December...