Do not be influenced by rankings. Rankings are not the only criteria by which you should judge a school. You need to understand the school and its values first. Find a program that aligns with your values. Chicago Booth was the perfect choice for me but might not be the same for you.
I made the mistake of not asking for sponsorship. Find a sponsor for your MBA, someone who believes in you and will help you finance your MBA and also help you with your post MBA plan. I had to do this on my own and I realized it was my mistake. So I strongly recommend that you find a sponsor.
Finally, at MBA Center I was in class with a lot of students who got admitted to NYU, LBS, INSEAD, and other top MBA programs and I could see that MBA Center really made a difference. I can blindly recommend the MBA Center and Dr. Hubert Silly to all candidates wanting to apply for an MBA as their approach really makes a difference.