I can get in and out of La Romana super fast. Santiago is fast as well. SDQ can be fast if you have your tourist card all ready filled out and skip customs by sneaking over to where you exchange money and are only carrying carry on.
Never been to Punta Cana (puj) but will be leaving from there on March 9 due to great airfare deal, flying into sdq on Feb 28.
1.La Romana
2.Santiago\ or SDQ if you skip customs and go to money exchange area on the right by customs, then Santiago will be 3.
3. see above, depending on choice
4. POP