They are both very good, which makes the choice more difficult.
What are your finances like? Is there a significant difference in cost between them? Would you need to take on any debt to attend either of them?
Why are you deciding this late? Have you committed to one of them, and then gotten into the other off the wait list? Alternately, is this for applications that have not gone in yet as a “rising” senior (ie, to be a high school senior in September)?