"What do the Puerto Ricans want?"
It depends on how you frame the question. Over 95% want permanent union with the United States, but are pretty evenly split between those that want statehood now and those who want to remain as a "Commonwealth" (and thus not pay federal income taxes on their Puerto Rico-source income while receiving billions of dollars in U.S. transfer payments) at least for the time being. If Congress followed the recommendations of President Bush's Puerto Rico commission and ordered a referendum in which Puerto Rico had to choose between sovereignty and statehood, statehood would win overwhelmingly. But so long as people in Puerto Rico believe that they can keep receiving billions of dollars without having to pay federal income taxes it will be very difficult for statehood to receive overwhelming support.