Most of these programs are cash cows / visa mills. You’ll be subject to the visa lottery system as any applicant would for a job post graduation. However you’re much more likely to find someone to sponsor the visa so that you can enter that lottery if you spend your time during the program networking, as opposed to a cold application from overseas. Either of these programs are very common routes for international visa seekers. Generally speaking the M.Arch I is the darling at the ivies and the B.Arch is the darling at the highly ranked undergrads. Any other programs are less important to key faculty and primarily serve to financially support the darlings with international student tuition / rich kids looking for that ivy stamp via an easier to get into program. Some of them are genuinely interesting with key faculty doing research and pet projects. These people may or may not be able to help you find a job. It’s highly unlikely that any of them can directly hire you. The MS programs are often only 1 year vs 2 years for the M.Arch II, again generally speaking. If all you want is the chance at the visa, save time and money and go for the shortest program at the highest ranked school you can get into in the city you want to live in. Focus your time on working and networking. That may or may not mean spending a lot of time in class. Depends on who you’re trying to impress.