Starwood Preferred Guest - London?

What's the best Starwood in London...particularly for a great suite upgrade over Thanksgiving for my family of 4 (wife plus 2 girls, 6&8)?

Perhaps one of these will help? :

http://www.flyertalk.com/forum/Forum74/HTML/002914.html
http://www.flyertalk.com/forum/Forum74/HTML/003073.html
http://www.flyertalk.com/forum/Forum74/HTML/003282.html
http://www.flyertalk.com/forum/Forum74/HTML/003495.html
http://www.flyertalk.com/forum/Forum74/HTML/004772.html
http://www.flyertalk.com/forum/Forum74/HTML/004336.html
http://www.flyertalk.com/forum/Forum74/HTML/004031.html
http://www.flyertalk.com/forum/Forum74/HTML/003282.html
http://www.flyertalk.com/forum/Forum74/HTML/004424.html

Thanks Scott.