Single guys... I would say Santo Domingo is for you -- shopping and lots of night life for those who have $ to spend. Piantini & Naco area + Colonial City are full of attractive places to meet single professional Dominican women. For golf, convince the girls to take you on Saturday for a round of golf to nearby Guavaberry Golf course. See
http://www.guavaberrygolf.com -- but 40 minutes from the city. Lots of good restaurants in that area -- Deli Swiss, Meson, El Ensueño, Cafe Real, etc.