Well, if you wanted to follow your own formula for leveling - shared abilities that are needed - CUL for Muscle Memory and GSM for Maker's Mark. But I would suggest leveling them up evenly to be able to make your own gear. Have you tried the mog quests? They supply their own mats and give great EXP. Once you break into 51, the vendor gear has the stats to get you started on making your own, if you skipped the Artisan's set.