The St. Regis hotel does not look anything better than the Westin. Actually, boring in the night. However, it is easy to identify in the night due to the ugly red outline neon light. Local cab driver call it "Red Tower" hotel.

However, the rooms are great. And the lounge is open to everyone who knows where it is. No one check anything or need a speical key to get in.

IMHO, one should try both and find out what you like! One thing for sure, St. Regis is much better than the HI next door ;-)