In this WoW guide I will talk about which area is best to level up in from level 80. As you soon as you reach this milestone, you should drop everything you are doing and head to the new areas. Your items will be obsolete so don’t bother finishing quest chain for items, they won’t be as good as the ones you get in the first quests in Cataclysm.
You will have two choices here, Mount Hyjal and Vashj’ir. And here is which one of those is best.
This is a very good area to begin your quests in. You will be able to use your flying mount so you can move a lot faster across the map to do quests. You will also gain reputation with the Guardians of Hyjal. This is a very important faction because you can get some very good items from them when you reach Exalted with them.
There are quite a few epic armor parts aswell, especially Plate armor. So you have every reason to want to complete this area and gain the highest level of reputation with this faction.
This region has pretty much the same quest layout as the previous one. You get the really juicy rewards as in the other region. The only problem is that you will be under water most of the times. You will have to complete around 15 quests to be able to get a mount that you can use under water. Until then, you will have to move around very slowly.
That is the main reason most players don’t take this route. You waste a lot of time moving around and the quests are the same with Mount Hyjal.
Now you know which option is best to go with from level 80. Just know that if you need a true leveling guide, there are far better options than this. You can use professional WoW guides made exactly for this.