I wouldn’t rule out art school. I went to RISD 20 years ago and am now am Chief Design Officer of a consumer electronics company with three brands. Design at it’s core is not an academic activity. the more rigid and academic the school, the harder it can be to transition to the world of being a professional creative. Are job is to find and develop innovative ideas, that kind of thing is hard to teach in a classroom. Art school happens to be a great petrie dish for learning how to innovate. The entire place is like a creative laboratory. Many of the good design programs that happen to be at universities tend to be run as completely separate schools within either their school’s of art or architecture. UC’s, which is one of the best university programs, is in their DAAP (Design, Architecture, Art, and Planning). RISD, CCS, and Art Center have probably the most consistently rated design programs and all three are art schools.
Just a little context for you.