I've found the Westin to be a teensy-weensy bit better than the Sheraton, but not by much. Rooms are more than adequate. Stayed at Westin the last two times.
On a previous trip, I sat at the bar and was completely underwhelmed by the service. The staff at the bar/restaurant area is horrible. They really need to get a new person there. Maybe the old bag is the best they can come up with. I don't think she likes her job.
On a recent trip (not wanting to sit at the bar again - the old bag was there) I sat at one of the tables. Sat there for about 25 minutes waiting to see if one of the servers would ever ask me if I wanted somthing. NOPE! Had to get up, go behind the bar where they conglomerate, and ask one to come over. Food was just OK, not good or great.