@Tee_Hi, enjoy

It would take me years to boil down the amazing intricacies of their universe, how the Federation wasn't about domination of one race, but a confederation of all complex beings, to protect and to serve, and how anyone could be special, how the planets explored were a whimsical masterpiece, and the show a breakthrough against all-white castings, but that would take years to fully explain.

But, just to tempt the fluctuation of explanations and reasons, this one is my simplest: 

Star Trek is better because Chekov's a cutie.