I agree. Starwood Pereffered Guest is the best so far from any other Hotel Programs.
I am also a member of HHONORS and Marriot.
I was a Sheraton Gold Member for one year before I get converted to SPG Gold when they Merged with Westin, W, and other Hotels.
I stayed in their properties From Dar es Salaam to Stockholm, From Zagreb to San Fransisco, No probelm getting upgraded to Club rooms even when I payed the low rates.

And excellent cutomer service too!
Unlike HHONORs.
I stayed at The Millenium Hilton in New York recently and it took serveral calls to their busy customer service to credit my account


------------------