What's the fastest way to level?

[Maero]

I have easily reached up to lvl12 in less then 4 hours just by doing what i mentioned in an earlier page, which is to do chain kill, leves and fates in between as well. Side Quests u highly recommend you leave some of them in case you want to level other classes.
As for questing it depends, if you are in a leve and the window pops up for the dungeon i believe it gets cancelled.