Ok, my main is a Hunter with Mining/JC (I was actually Skinning/JC at the start of the expansion but that was going to be insane (read: expensive) to try to level JC). I like JC for the income flow as, I stated, this is my main character.
Since my main dinged 80 late in Cata (after ICC 5-mans were released), I never had the time to seriously level an alt because I was spending the bulk of my time doing stuff with my main. Now that I'm present for the length of an expansion, I expect to have plenty of time to level an alt as a support character for my Hunter (who I intend to remain my main).
I rolled a Worgen Rogue last night, because I'm thinking it's a good choice for support class. I will go Skin/LW with him to benefit both himself and my main at higher levels (and since he's Worgen he skins faster). Rogue has a similar playstyle (i.e., using a Focus-style bar), although that's a minor concern tbh compared to being able to use LW for himself as well.
I'm reasonably comfortable with this choice, but I'm wonder if there's another alt class/prof combo that may be a better choice. A herb/alch alt I can see as being useful, but I don't know if it would be more useful than skin/lw. I also know that you're "supposed" to be two non-gathering professions when you're a top end-game raider, but that's honestly not me and I prefer the self-sufficiency of gathering-crafting prof combos.
Thoughts?