Very interesting question but my response all depends on your criteria so here goes;
Best Unit we have ever stayed in;
1) Morrits Grand- Grand Cayman 2BR 1500 square feet with huge oceanfront balconey and fantastic Ocean views.
2) Royal Mayan-Cancun- Although older than Morrits Grand we had spacious 2BR unit with great large balconey and again fantastic view of beach and pool.
Best Resort we have ever stayed in;
1) Mayan Palace Acapulco- Fantastic resort with great pools, ocean views, gorgeous lobby, fantastic service including maid service twice a day. outstanding amenities comparable to any Ritz Carlton we have ever stayed in.
2) Melia Paridissus Punta Cana- Huge resort with great All inclusive program. Great beach, amenities, restaurants, pool area, nightly entertainment. We had a great time here.
Best worlwide location;
1) French Riviera- Drop dead gorgeous from Monaco to Cannes. Every scenic drive was a total WOW!!!! We stayed at a very nice timeshare which was all marble and very comfortable but you don't go to the French Riviera for the unit. It's location, location and the French Riviera is awesome and not to be missed.
2) Rome and all of Italy from what we saw from Naples to Rome, Florence, Tuscany and Venice. Our timeshare was again nice and comfortable at Carpedium Roma Golf resort but it was on the outskirts of Rome and we needed to drive to train station and then it was about a half hour into town But again Italy has to be one of the best countries in Europe to visit with history, museums, lakes, mountains, countryside, and great coastline. We loved the trip and never would have had the experience without the timeshare exchange.
Actually I don't think we have ever had a really bad exchange but they sure got better once we joined TUG. Thanks for all the sightings and reviews that have helped us get all of these great exchanges.