If you're a points person, chances are you will find yourself in Abu Dhabi, my 76th 'country', for one night while to catch your flight to somewhere else. I've never had a desire to visit Abu Dhabi and opted to spend a month in Dubai instead. From what I saw in my short time there, Abu Dhabi is beautiful and may require a more extended visit.
It's not all about South Beach when it comes to Miami. There are many great areas of Miami including Brickell, the next most livable city after Scottsdale, Arizona. Brickell is the financial district of Miami which is why it has high end hotels like the Mandarin Oriental, the Four Seasons, and the Conrad.