wma

I've done a search and haven't found a direct comparison of the Westin and the Sheraton Great Wall in Beijing. I know the St. Regis is a better "tourist" location, but I can't justify the difference in cost. How off the beaten path is the Westin in the Financial district? I've read that once the Westin worked out the opening kinks it's a nice place to stay but I've also read that Beijing traffic is a killer. Any suggestions, comments, reviews would be appreciated. Thanks