Crafting Log to 15, Leves/crafting log/Ixali beast tribe to 50, Leves/Moogle beast tribe/collectibles to 60. With the recent changes, you really want to focus on getting blue crafting tokens for new gear for when you hit 60.

I'd strongly suggest, however, taking all under-50 crafters to 50 before working (except for Moogle beast tribe stuff) on going higher than 50. You will want the cross class skills, and more importantly, you will want the ability to craft your own refined materials, something that is more prevalent in HW recipes than ARR recipes.

It can also help to have your gatherers done.