Simple. Best weapons (Melee or Ranged) and best armor set to use with those weapons and the best way to improve them!

Looks like you are looking for build guides. Here's one.

https://www.youtube.com/watch?v=Llkefh48IFw&list=PLl_Xou7GtCi6eBp-snHUHg2dgtes3XZ7H&index=9