Hi there guys.
I am glad to share with you my routes for a fast paragorn level up, or for a fast gearing up, and preparing for the incoming expansion Reaper of souls.
Here are the vids :
https://www.youtube.com/watch?v=xZkojLeD7B4 - high xp run
https://www.youtube.com/watch?v=uCABoQlAVcY - Act I legendary farm run
http://youtu.be/-Nn2Sp7MJGI - Act III legendary farming run ( this vid was added later, after i took your advice from the posts to try out Core of areat, Thanks alot! )
Hope you try them, and give a feedback. It worked so good for me.
Enjoy!