Update: The reason for less experience from gathering is due to how Blizzard revamped professions and broke them down by expansion. In order to get full exp from gathering you'll simply need to find a profession trainer for the relevant expansion. (WoD you just mine or herb the first one ypu come across and the game gives you a scroll for learning WoD gathering).
“For those of you who played Legion, the process will largely be familiar, though in Battle for Azeroth we’re trying to align the opening of a new raid tier with the start of new PvP and Mythic+ seasons, to avoid some of the awkward item-level leapfrogging that we saw during Legion (e.g. the Mythic Keystone cap repeatedly going up to 15 and then back down to 10).”, the game director writes.
The leveling path was built around using a Hunter character and run by a player who knew how to use that character well. For the average player running, for example, a Paladin, the guides could be frustrating in spots, due to the level of the mobs. I played through Joana’s Guide with a Rogue (all the way from 1-70) and was able to deal with most everything, except for a few elites and I skipped most all of the group quests.
The vanilla WoW Horde leveling guide you see on this site was originally made back in 2006 by Joana (AKA Mancow, or FuriousPaul).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.
Then if you visit their member’s area (and I want to make this Dugi Guides review honestly), you will get a lot of videos that was very helpful. Anyway check my screenshot of member’s area below. You will get as I said a lot of tutorials videos, special PVP and PVE macros that are very popular among members. Then there you can find professions tutorials, Quests tips and so on. But main is their Dugi addon.
The world quests aren’t necessarily bad, but they aren’t good either. I wouldn’t mind killing five of a type of monster or fighting one particular boss a few times, but after seven or eight, it starts to wear pretty thin. But going from levels in the mid-20s can take nearly 30,000 AP, so you’ll need more than world quests if you want to get your heart up in a reasonable time.