I've gotten more than enough leather gear through drops and badges that tailoring never came into the equation. My druid is herb/alch and I love it - I'm always at full consumables and herbs sell very well (even pre-patch). But your subject lists 2 crafters as options. With that in mind, I'd suggest alch/ench. Alchemy has some killer trinkets, and, again, making your own is a good thing (though not as good since you're buying the mats). Enchanting is simply the best money maker in the game. Plus you get the ring enchants as well. Well worth it.