I decided to stick with Marriott before I actually gained access to a lot of the higher level services.. this was due to a number of reasons, one it was very easy to earn silver (get em in early).. While the perks are not amazing I am very happy with the level of service I have received. One a recent trip to Melbourne, Aus, the service was exceptional! Recently in Boulder, Co I got a very nice upgrade at a RI and at all properties I have found staff to be courteous and, well, nice!
I will make plat once my recent stay posts.. I do not expect upgrades to suites however if such an upgrade occurs I will be happy! (if you want a suite, the only way to be guaranteed is to pay for it!)
Recently I bought my family along with me to a meeting in SF where we stayed at the Union Square property.. Probably the most value I have got from a lounge.. Free breakfast for the three of us and snacks for my 8 yo (well behaved in the lounge!) an night was a real perk..
Perhaps the grass is greener.. But the fence Marriott has build means I can not really see it and am happy for now