Hands down Bragg. (Upon first skimming the post, I thought it asked, "who would you like to work for?" I thought, why in the world is Bragg even on there?). I'm a D.H. Hill fan, so I don't think he would like me very much! : )
I actually like Meade. For some reason I take a liking to those generals who could be known as cantankerous and moody (Meade and Warren come to mind; even Hill, but I think his big mouth got him into trouble more and people seemed put off by his carping). I have this impression that I'd work well with Meade.
Rosecrans I don't know too much about, but from what I read so far I like. He seemed another one of those eccentric types that I'm drawn to.
Among other suggestions I would say a big NO to Jackson. As much as I admire his adherence to duty and discipline it seems to me he tended to try to find fault in others. That's probably just my impression, but like one of his soldiers said about him in a Jackson bio (paraphrase): I'd like to read about Jackson from afar way better than working under him!