Westin for me anytime as I like sleek, modern and even futuristic decor. Great service too.
I was going to try the SGS because of the rave reviews, but when I went to check it out for a future visit - it reminded me of the typical LC hotel experience, old-style and overly fussy. I also do not like 'traditional' decor.
Plaza has very good service and spacious rooms. But it seems a bit jaded and the decor isn't as sleek as the Westin's. I also prefer the Westin's location.
Haven't tried the ROS as it seems pretty out of the way. "River Views" (or just "views" in general) aren't a selling point for me either.
