Some advices needed

I’m currently a senior with a semester left before graduation. I’m working as an intern at a MM boutique, specialized in cross-border transactions, and it's been two months since I have been working. I was signed to work for three months, but I might work three more months if they give me an re-offer. The team is great, and they are giving me a lot useful advices occasionally.
I told them that after I graduate, and after two years of experience in the field, I want to do MBA. They told me that working as an analyst before MBA is a very typical career path of becoming an investment banker. In other words, there are a lot of various ways you can build up your career. One alternative they told me is that you can go into the industry and be in the strategy or in-house M&A division in the company. They have recommended alternative energy, pharmaceutical companies. In those cases, you’re chance of losing a deal due to lack of expertise in that particular field will decrease. Maybe it could also help winning a deal.
I’m pretty flexible when it comes to choosing my first job. It doesn’t really have to be investment banking. But, I will do it after MBA, and my final destination is founding a PE shop. I’m not pretty sure how it works, but one thing I know is that you have to know the ins and outs of the industry trends in a broad range.
Let me wrap it up. Investment banking gives you broad range of knowledge in different industries and will give you some sense of how deals work. Working in the industry will give you depth knowledge in one particular sector. The time when I do real live deals after MBA, and the industry I worked in becomes a rosy picture, it will get pretty sexy.
If you guys were in my position, what will you do?