Best to level all crafts to at least 15 to get the cross class skills. I decided to level the easier ones first (alchemy, goldsmith) The level 50 skills are awesome for getting HQ...Now you if level your weaver as well you can use your goldsmith and weaver to make HQ gear for your crafting also making it easier to HQ...It's all about your gear and cross class skills to get HQ.

Good luck!