So which section part of the Great Wall is the best?
Generally speaking, “more attractive” means “more remote”. For most travellers, the public sections of the Great Wall mean safe (i.e. well organized in terms of ticket sales, access, etc.) and convenient (i.e. shuttle bus & cable car). The majority of clients prefer the sections of Mutianyu or Jinshanling.
If you enjoy hiking, I can highly recommend trekking the Great Wall from Jiankou to Mutianyu, or the route from Guobeikou to Jinshanling.
The best advice, however, I can offer is to skip Badaling & Shuiguan. These sections are always overrun with local & international tourists. Numerous “shopping opportunities” (even on the wall itself) can be very annoying also.
Check out all the available The Great Wall tours here.