I was a hilton diamond for 4 yrs and stayed about 195 nights per yr in a hotel. I then stayed with IHG for 1.5 yrs and now my current job has me at 85 nights or so per year and I've been with Marriott for about a year now. It is the best chain, in my opinion, in every way. You'll see soon

No need to list reasons, as I think everyone should experience all the brands and make a choice.