I think you have a great chance of being accepted. Your stats have landed you the interview but your interviewing skills will have to compliment your stats to earn you your acceptance. I honestly cannot give you a rating (1-10) as to how likely it is that you will be accepted because I have not and will not be interviewing you.
What I can recommend however is that you do your research on the school and just be yourself come interview day. There is no real way to prepare for MWU's interview style and this, personally, was one of my favorite things about this school. The professors and students are all very friendly and no one will ask you any trick questions. The interviews are very conversational and as I'm sure you have read on here, it is very much like 'speed dating'. Just be yourself and give honest answers and you will glide through the interviews!