I'm planning on playing two teams for Cata - 5 priests and 5 druids. I may try 10 boxing, but that's a different story.

Over the weekend (I resubrscribed out of boredom) I decided I'd to the professions as the following:

Druid 1: herb, mining (this is my tanking toon)
Druid 2-5: alch, engineering

Priest 1-5: JC, engineering

I want the engineering for PvP.

JC is turning out to be brutal to level - more difficult than any other profession I've ever done.

What is going to make me the most money? I know you can't answer in absolutes given the unknown in Cata, but is it better to just have all the toons be alch and have one JC to cut everything I need?