I really love the X, and look forward to making that our second car. My main car is a MS P100D, but when I get a loaner, I always ask for the X. When I drive the loaner X for a while, I think, man, the auto-presenting doors, falcon wing doors, windshield and little things like the fob proximity sensing ability is superior in the X. It's incredibly fast in any version for an SUV or even compared to other cars.
There is no vehicle on earth I enjoy driving more WITH other people in the car than the Model X.
There is no car on earth I love driving solo than my Model S. Total control on the road. It is incredibly nimble, and fun to drive.
For this reason, once the Performance Model 3 gets uncorked with 2.5 second 0-60, I believe that will be the most fun Tesla to drive.... and it may currently be the case even with it being a little slower.
So, in summary,IMO best car on the road = Model S P100D; best SUV on the road would be any version of the model X (60,75,100, or P100D).... Most fun Tesla to drive without using AP, likely the Model 3 performance.
Most annoying thing about the Model S after driving the X for a few days?, lack of auto-presenting doors, lack of panoramic front windshield. If they add these two features to the Model S, along with the ability to auto deploy a shade overhead instead of the pop in, I might just cry with joy.