With my wonderful experience at the Stephen S. Austin Intercontinental behind me, as a Starwood Platinum member, I choose to visit a fellow Platinum member who had already secured a corner suite at the Austin Sheraton.
While the accommodations at the Sheration were equally spacious as at the IC, the quailty of the furnishing and staff at the IC were superior. This is not to say any requests were denied from the Sheraton staff. They did just fine, and with some unusual requests no less. One area of the suite at the Sheraton did one up on the IC with the bathroom. The Sheraton suite included a hot tub, and the IC did not. Enough said.
Analysis: If you're a Starwood member and not Six Contintent member, and want the Starwood stays, take the Sheraton. You won't be dissapointed. If you want to try something else or a more luxury weekend, take the IC.