Which is better, mechanical engineering or electrical engineering?

Major in electrical engineering is good.

Electrical engineering is more applicable than mechanical engineering and has a better employment prospect.

These two majors complement each other. The combination of machinery and electricity is electromechanical. The perfect combination of the two is a system. For example, a robot needs a controller to control its actions. This is electrical automation, and the execution of actions requires machinery. Satellites and vehicles are typical examples. At the same time, these two majors have a certain intersection, so we should learn some basic theories of electricity.