Both are excellent, top tier schools for CS. Look deeper into the curriculum and sequence of classes offered at each. They also differ in many ways (like location, weather, sports, etc), so consider other factors that are important to you.
Both schools provide excellent research and placement opportunities. However, since you used the word “unis” I’m going to assume you’re an international student. If yes, you can work for up to 3 years on OPT after you graduate, but will then need to find a sponsoring employer if you want to continue working in the U.S. That can be challenging, so keep that in mind.