As others have said, I don't think 3 nights is a fair sample by any stretch of the imagination. I have had mostly stellar experiences at *wood properties.
Of course, you've picked the most inconsistent brand (possibly along with Tribute Portfolio) within the *wood portfolio. But there are still some mighty fine Sheratons out there.
I've had some less than satisfactory experiences with every brand out there, including Marriott, but overall, I think the Marriwood combo is the best.
YMMV
