I think that I was massively over treated by the few Hilton hotels I frequented as Hilton Gold and it's warped my expectations. I will see the year out as Marriott Platinum/Titanium, take the SNAs and use my points for some family vacations and move on (Hyatt sounds like the best option and has coverage in my main destinations).
Side question, if I book an award stay (5th night free), can I use my SNAs to upgrade to a Suite, or does this just make it twice as likely that they will reject my SNAs?