Re: What to say in an interview
"What is one of your biggest weaknesses?" Easily they'll ask you this. Respond with something that't tough for you pertaining to the job requirement, but that you bust your ass to compensate.
ie. going for a economic or marketing job "I had a really tough time with calculus in college. However, I sought out extra help from the staff and friends and ended up getting an A in the class due to hard work."
"Why pick you over the other [more qualified] applicants?" Again, staple question. Be honest, even if you don't have the work experience like someone else does. State examples where your lack of experience was easily overcome with your hard work.
ie. going for a pharmaceutical company, "I really enjoyed learning all that I have and that's what separates me from others. I enjoy knowing that I still can learn more about the job, I and intend to deliver an outstanding performance while improving, rather than simply relying on what I've learned."