Do a search and you'll find this topic regularly covered. I chose Marriott, as Hyatt has a small number of properties (none in my last 3 project sites), and the HH program has crumbled over the last several years (I was top tier in both at one time). Come flavor of Marriott is about everywhere. My current site has 1 SPG but at least 7 Marriotts (no Hyatt, a couple of Hiltons)