Frozen Four cities I have been to: Boston, Tampa twice, and Vegas. They are so interchangeable on strengths and downsides. I like the option of Frozen Fours being in cities that I may not other visit if it wasn't for Frozen Fours being there to explore new places, but also have some built in plans. The downside of St. Paul is how many times I have been to Minneapolis/St. Paul in my life, but the perk of not having to fly is a nice upside for cost savings. I like going to Vegas every 3-5 years, whether for hockey purposes or not, so I wouldn't complain about keeping Vegas in a rotation.