If you're planning on running multiple characters for Kinah, then leveling the MSQ til 22 for 2-3 characters (to start banking Cube Energy) is the play. It's fair amount of work to do all the side quests and sealed dungeons to get those alts up. I'll probably only make one alt, Chanter and Spiritmaster. Played both a fair bit in TW.
The biggest issue I have right now is I don't have a legion to join, and the choice between Elyos and Asmodian. No matter what I pick, it's going to be the wrong one.