I like the prospect of getting the exposure to many professionals, industries, products, and concepts in a bulge bracket firm. I know that in that environment I'm going to get access to the best learning experience possible. Also, I like how (this particular bank) has both a more casual and entrepreneurial environment than many other banks. I also think that being in an Industry group, I will be able to get more exposure to a multitude of products. This is an important consideration for me.

(IMPORTANT RELATED NOTE: Make sure you know about the culture and philosophy of the bank you're interviewing at! You want to express that you understand the firm/group's view on this idea, and that with them you'll be "working for the smartest people in banking, who will challenge you to learn more.")