I accepted SFSU. They have an excellent reputation in the Bay Area. I've been working in the field for over four years now and word of mouth among service providers here is that SFSU is better for those pursuing clinical and direct service tracks and Cal is better for those interested in policy, research and academic tracks. Both are excellent programs (the first and second most competitive MSW programs in the country respectively), I just happen to be more interested in a clinical track and so SFSU was my first choice.
I was also offered a full tuition grant by SFSU this year. Even if I hadn't, the price difference is staggering between Cal and SFSU! I could not wrap my head around paying $28,000 a year for an education that was no better (and possibly inferior given my interests) than an education that is $7,000 a year.
I also applied to Cal State East Bay. This was my third choice after SFSU and Cal. I have heard that they have a pretty good program and a really diverse student population, which I value a lot. The one thing I'll say is that I learned that they are reconfiguring their MSW curriculum starting in 2018/ 2019 school year and I was really put off by the potential upheaval this would cause.
I hope that helps!