Reporting from the East:
Sheraton Shanghai Pudong is pretty bad:
Wired 0.97/0.4 in room, wireless in the lounge and lobby is slower.
Also a lot of periodic connection drops. Other than the internet connection, it's a great hotel.
Great speeds at Sheraton Hong Kong and Westin Shenzhen. Westin Guangzhou was OK, not great (2.0/1.7)