I would say that any product in TripleClicks is a good choice for Your marketing efforts; it's really just a matter of what type of product that You feel comfortable with.
Remember the old saying about: a genius salesman can sell ice cubes to Eskimos?
Well, successful marketing is somewhat like that. Strive to be a genius salesman.
Especially it's a matter of approach: lighten up, add a sense of humor, relax, put Your customer at ease.