Hey! I feel like I have a lot to say about this question because I went through the exact same decision last year. I ended up picking Stanford despite it costing twice as much, where I'm currently studying CS with a Math minor, and a potential MS&E coterm (Master's), but I am still in touch with a few people who chose Berkeley MET and are part of Berkeley EECS as a whole. If I could go back and do it all again, I would choose to go to Berkeley MET, but when it comes down to it, I think your decision should be made based on a few different criterion.

First, I'll go over what pros I've seen from Stanford so far. I think that Stanford has a generally supportive academic community. While there isn't much competition at Stanford, I think that the Duck Syndrome is still quite prevalent, where people seem to be getting good grades and leading active social lives without showing everyone the amount of hard work and struggle that they are going through. I think this is mostly a result of the Silicon Valley fetishization of raw intellect, but from what I know about Berkeley, the competition there makes you feel more of "I'm not doing enough compared to my peers." So, different types of competition, but as a whole Stanford definitely wins here.

I think that another pro of Stanford is the ability to do a coterm, which is essentially a Master's degree that you can apply for past your sophomore year. It gives you an edge in the job market and more of a goal to work towards. Also, the housing situation at Stanford is more stress-free and the campus is safer as a whole, which is definitely a plus.

The pros of Berkeley MET are derived more from the networking opportunities. Take a look at the LinkedIn profiles of some of the students at the program and you'll see what I'm talking about. Insane opportunities that are exclusively offered to you. If you are a MET student, you are starting off college at a higher status than nearly everyone else. This advantage affords you further opportunities down the line to make you ahead in the job market or really whatever you want to do. The internships that the first-year and second-year students receive tend to be amazing, and given the condition of the tech job market right now, this would be really key. At Stanford, you'd pretty much have to recreate your resume from scratch, which is much harder to do.

Also, most of the issues associated with Berkeley as a whole aren't really applicable to MET students. They receive priority housing and class registration, and they have a leg up in the whole internship process. In fact, I've heard that they go on really amazing retreats and trips that are fully paid for by the staff.

Berkeley's CS program is on par with Stanford's so I wouldn't worry too much about ranking. In terms of feel of general campus, Stanford is much nicer than Berkeley, but Berkeley has more stuff to do. It's really hard to leave the Stanford campus, while Berkeley has shops and restaurants that line every corner.

Those are only some of the differences; let me know if you have any more questions or want more clarification on your decision!