If you're determined to stay at the Westin, I suggest doing the following.
1. Get on the waiting list.
2. Book elsewhere JUST in case.
3. The day you arrive, go directly to the Westin and see if they have any rooms. Of course if they do, you'll have to eat at least one days charges at the hotel you booked at.
An associate of mine did this two years ago and he got a room no problem. It's inevitable that people will cancel or not show up and they won't be able to get in touch with everyone on the waiting list.
