The zones in Battle for Azeroth are littered with treasures and rare spawns that give the same amount of XP as quests. With Zygor's Leveling guide these points of interest are displayed directly on your map and can be clicked at anytime to add them underneath your current guide step. The guide will then switch focus to the POI, direct you to its completion, and tell you how to complete it.
I hope this information helps a lot for players that haven’t had the chance to play Beta and gives you an idea of what you should be trying to accomplish your first 2 weeks of BFA. If you plan on pulling all-nighters, please don’t be reckless and over strain yourself. People have died from lack of sleep. If you want some tips on staying up I recommend taking a nap before launch time, eating a healthy meal full of protein before launch, snacking on fruit and nuts (my personal go to is clementine oranges and almonds) while leveling, if you do decide to drink energy drinks I do recommend not getting the ones packed with sugar (I prefer no sugar no carb Redbull and G-Fuel) and making sure you drink at least 2 bottles of water in between every energy drink so you stay hydrated and don’t crash. A good time to get some sleep is after you finish all the questing and you are 120 which again will take average played 10+ hours. Again, please don’t be stupid and end up hurting yourself over a video game; everyone must sleep at some point, so you won’t be too behind the curve.
The vanilla WoW Horde leveling guide you see on this site was originally made back in 2006 by Joana (AKA Mancow, or FuriousPaul). The guides have been tweaked many times over the years to make things "faster". The leveling guides were made because of all the messages I got from people asking me how I was able to level up so quickly on new realms. I was first to level 60 on 7 different realms (3 with Mancow and 4 with Joana), even winning Blizzard's "First to Level 50" contest they held back in 2006.
So this is all from my understanding but with the scrapper it seems to be that you get materials based on the type of gear that you are scrapping. I.E I got more ore from scrapping plate gear and more cloth from scrapping cloth gear. Trinkets, weapons, and rings give different types of material and I don’t quite know the layout for that. Personally I would just DE everything as an enchanter. I stressed how important it is to trade with other players to get the materials needed to do all 11 warfront quest and you will obviously have more materials to create the enchantment that is necessary for the turn in to make trades with.