Corp Dev vs AM

I have two offers for an internship opportunity and I am having a little trouble deciding which route to pursue.

I have an offer from a highly acquisitive media company in NYC where I would be working as a corporate development role. I would be working with an MBA intern to source potential target companies, perform due diligence, and modeling work.

The other offer is from a small, boutique AM firm in Greenwich. I would be doing equity research. It seems very laid back, non-structured, and autonomous work. I am free to pursue industries where I have interest and they are willing to teach me if that is something I desire.

I am fairly confident that I want to pursue a career in AM. With that said, I am only 21 years old and my interests might change in a few years. Therefore, I want to learn transferrable skills.

To help provide more insight, AM offer is less pay, NYC>Greenwich and the AM firm guaranteed I could not be hired on full-time unless something changes with current full-time employees because they are at capacity.

What would you suggest if you were in my shoes?