after doing leveling roulette everyday:

1-10 grinding fates in summerford farms
10-15 aleport fates
15-30 still doing fates and when bored i queued for last dungeon available, with food.
30-45 grinding fates in dragonhead while doing dungeons
45-60 dungeons.

The insta queue in dungeons helped a lot in leveling as i had the chance to learn the class much better, besides the xp and gear, and i always used them to get a break from fates.