Congratulations! I had the same difficult choice more than 3 years ago but chose MWU AZ over MWU IL. Main reasons were: AZ tuition is a tiny bit cheaper (even though both are super expensive). Living in Phoenix is cheaper than Downers Grove / outside of Chicago. And most importantly, you take boards after your first year (and get the whole summer off to study for and take them) at AZ while at IL and a lot of other dental schools, you have to take them after your 2nd year and find a time while school is in session to do it. Also, AZ offers both NERB and WREB while IL only offers NERB and the Midwest Licensing exam (name escapes me right now). So if you want to practice in CA, AK, OK, or SD (WREB strict states) within 5 years after graduation, you had better be prepared to fly to the AZ campus (with all of your screened patients) and take WREB in Arizona. Best decision I've made picking AZ.