Quickest way to level up now?

[NYCLouisGamer]

honestly MSQ if you're starting from ARR you will be level 55-60 by the time hit HW, once you m ake it to Stormblood you will be hitting about 75ish and probably be capped before Shadowbringers if you only level warrior other than that its roulettes and it can be even faster if you roll on a preferred / new world because of the road to 80 buff just realize once you hit 80 the buff goes away though. make sure to eat food and get in an fc for the xp buff as well.

That is not actually correct for 2 reasons:

1) NA servers no longer have preferred realms. This will change in the future but as of today, no North American server will give boosted xp. But people can choose to play on a different continent server, if they don't mind some lag.

2) Most of the quests between the end of ARR & Heavensward were removed. Now, you are lucky to be level 51 when you start HW in a non-preferred server with quests removed.