We were at Sans Souci a few years ago. At the time, it was independently owned (just before Couples took over) and I can assure you the resort is beautiful. The only thing I felt was lacking was the service. We've been to Couples Negril, and I remember thinking when Couples took over that the service would surely improve. A block is closest to the beach and beach bar, pool and pool bar, beach grill and the buffet style restaurant. A block is also the newest of the buildings, but also the rooms are smaller. We stayed in D block (right on the cliffside that you see in all the pictures) and the rooms were quite large and well kept. The thing I liked about D block was that it was at about the halfway point of the resort both in terms of elevation (a few steps up to the lobby/balloon bar area, a few steps down to the pool/beach area) and distance (between the pool/beach and spa/fitness/mineral pool. From A or B block you'll have a long walk (or shuttle ride) to the lobby/fine dining/balloon bar area. It's also a long walk to the spa/fitness/mineral pool area. Your walk to the nude beach section however will be very short.
I'm an avid golfer, though I did not golf while we were there...I'm not nuts about Jamaican golf.
Rest assured...if you're looking for a quiet, romantic, luxurious, pampering experience, you've booked the right hotel!