What joystick should I use to play Microsoft flight simulator 10 and xplane 10?

600RMB Tuoshi T 16000M is highly recommended:

This rocker uses Hall effect (an electromagnetic induction, for details, Baidu Encyclopedia), that is, the handle part is not in contact with the base sensor part, which avoids the wear problem of ordinary rocker (such as FLY5) and increases the accuracy. It should be noted that players generally report that the accuracy of the rocker without Hall effect has deteriorated a lot in a year or so. You can calculate, is it a one-year FLY5 value or a two-year T 16000M value?

The disadvantage of T 16000M compared with double handle FLY5 is the throttle. Fortunately, FSX and X-PLANE are different from fighter games, and the throttle does not play a very important role in civil aviation. When landing, you can completely postpone disconnecting the automatic throttle.