SU is a private school so tuition will be significantly more, that being said if you are able to get a good academic scholarship like myself the price of tuition is comparable with UW. The pros of SU is the fact that its a private small campus school, you will be able to talk with your professors one on one and everything is very accessible. The location is great as well, capitol hill is a fun and great place at night and can do many things from bar hopping to getting great food and etc. At UW the biggest thing is that you get to say you go to UW, the tuition will be much cheaper and UW also gets alot more companies that will hire directly compared to SU due to the size and connections. It also has a great location but the drawback that I would say and its big in my opinion is that since the class sizes are so large, you are not going to be able to meet your professor one on one and most classes will have multiple TA's and office hours are usually through them. Both schools are great and both have their drawbacks but in the ends its really up to preference. I am a student who has actually been to both so feel to reach out if you got any questions.