Well, the way the game intends for you to do it is to run Wanderer's Palace and Amdapor keep a couple times to get a few gear drops from those, which are upgrades over your AF stuff. Which then leads into being able to do HM dungeons like Halatali for even better drops. Along the way, you'll get the myth for a couple i90 items.

Grinding hunts may get you gear quicker, but doesn't help you at all when it comes to being prepared for doing actual content.