I would suggest first character picking up the crafting that is armor and weapon for your profession.
If you change later great, as you can with no negative effect really. But Jewelcrafting and Cooking are the 2 hardest as the mats for them are not the best to come by. Gems for Jeweling are used in other profs. And cooking mats are all gold, and karma based pretty much.
And it isn't exactly more profitable. Its just a lot more people made money with that choice. Offset costs and the fact Many players took that as a crafting choice.
Ok so weapon and armor on my Ranger or thief, then on my next toon i can do cooking and Jewelery when i have more money to toss at it.
Anyone able to give me some more details on rangers though, at work and don't have access to much. Is there a melee build, what weapons combos do they use?
Thanks