The replies about comparing the Marriott and the Westin are pretty much right on, in my opinion. Depends on what means more to you.

I stayed at both 3 weeks ago for a company meeting...my company, not the hotel, lost my reservation for the Westin, which is where the all week conference was, and booked me into the Marriott for 2 days, then moved me to the Westin for the other 3 days. So I got to see both.

An interesting thing for me was, the Marriott does not have a concierge lounge. The desk clerk told me they used to several years ago, but cut it out. Didn't know why. This was not a problem for me, but I was a teeny bit disappointed that such a grand property didn't have one.

And, while it is way too OMNI to go into how I found this out, did you know the Westin has some suites with baby grand pianos?

And they have grapefruit trees there. Wow.