Not only has dungeon exp been boosted significantly, there's FATEs and PotD which also just bleed exp.
Plus 2x exp for levels 1-50 and 1.5x exp for 51-60, assuming you're not on your first class here.
For gathering and crafting there is daily GC turn-ins, beast tribe quests, workshop items, Collectables, and levequests.

Levelling is, by far, the least time consuming part of playing this game. It's no longer a grand affair when someone levels up, and that's pretty sad!