Where I stay depends on so many factors, but I do not book one chain of hotel over another, especially if traveling outside the US.

I like to try something new. I have stayed in international chains overseas, but I'm willing to try something different unless the available online reviews make the place sound so horrid. Even then, I take online reviews with a grain of salt. I wanted to book into a hotel in Europe once. It had a recent stay with an awful review. Turns out that the problem was that the reviewer had to wait - gasp - more than thirty seconds for someone to acknowledge them. Then it took another two minutes to obtain the room key.

Sorry, but if that is the worst thing you can say about a place? I don't care. I can stand in line for several minutes. I consider it a virtue at this late date.