This is an excellent question, and you are clearly way ahead of the curve to ask this. I am sure that, given how determined you are, and how early you are starting your search, you will have no problem finding a job.
That said, there is not one particular college that agents or editors recruit from. The best thing you can do to set the stage for a job, possibly even more important than the college you attend, is to have as many internships as you can before you graduate. I would advise lining up internships every year during college (typically during the summer, though could be anytime). Keep in mind, some of these internships may require your applying many months early, for example in the fall for a summer spot. In this regard, it would obviously be helpful if your college was in or close to New York City--unless you are willing and able to travel back and forth to NYC for interviews and internships.