I moved to US Bank partly because of S Pay but partly because the regional bank I was using didn't have the products and features bigger banks do. So far, I like dealing with US Bank. They're pretty responsive and their online stuff easy to use and comprehensive.
Samsung Pay is supposed to support nearly all cards. It hasn't gone live yet. BofA and US Bank were in the beta testing. It's going live on 9/28. That's why most of us have been receiving small updates from the carriers, prepping the phone for Samsung Pay. At least that's what my update this morning stated.