Who owns SPG now? Oh yeah, that company that just devalued your points at 1,082 properties (I helpfully linked to it) and that's going to kill of the SPG program once and for all at some point relatively soon.

But hey, if you're getting great value out of Marriott, IHG, Hyatt or whatever, go for it, the programs aren't looking out for your interest, only you can do that. If you want to ditch Hilton for another program, be my guest. If you want to seriously argue that SPG is a good long term proposition... well.... okaaaay. If you think Hilton's some unique proprietor of evil, I submit you're not paying attention.