Why not check out both places.
I was diagnosed with Stage IV colon cancer in 2004. Many docs said I had 6 to 12 months to live with treatment, but that I could die at any moment. I searched clinical trials and the right docs for me. They turned out to be at the U of Minnesota.
There are free flights available and a lot of places have free lodging, so don't let transportation costs be a factor, go to the best place for you.