[catalyst]

I would avoid northwestern like the plague - from what I have heard about them, anyways. I interviewed at LFG for a rotational program, and it seemed like a pretty laid back company that was very good to their employees (in phili). Take that info FWIW. You will learn about these companies when you interview though, so making a decision now is silly - and you may not get offers from all of them. Go to each interview with the intention of getting the job, then compare your offers with the information you gained from the interview.