Augsburg: I have worked in the ICU at all three hospitals you mentioned. I worked side by side with the manager at Salt Lake Regional, He and I were both clinical coordinators at ST. Mark's ICU. He is wonderful, his name is John. The nurses at Salt Lake Regional are pretty laid back, but very professional, they do their fair share of cardiovascular surgeries there, but also have a nice step-down unit. Read my earlier post about St. Mark's hospital, I love that hospital, but the nurses can be a little nasty. Old quote from when I worked there, "Do you know how you can tell a St. Mark's Hospital ICU nurse??? By the stab wounds in her back" The nurses at St. Mark's are pretty notorious in the Salt Lake Valley. They are some of the most intelligent nurses I have ever had the honor of working with, but wear your tough skin, not always, but sometimes you need it there. They don't mean to be offensive, just a high level of standards and they have high expectations too, a quality I want in any nurse taking care of me. Good luck in your choice, they are all really great hospitals, dedicated to quality patient care.