This is the most geenric question, but it gives you an opportunity to tell all, so be ready to discuss what you have done in the past, present and future plans. Talk about what you are like as a person, not just what you do, but who you are. Many times you are working within a team, so the team has to like you, plain and simple, regardless of how qualified you may be, the team has to buy into your abilities and your brand. Always be ready to discuss weakness and strengths.