The biggest difference is that the US has implemented large stimulus bill, including direct payments to individuals and families. They have kept the consumer spending from falling. China has not given much demand-side support meanwhile. So China's recovery is more driven by supply-side. The demand side should show stronger performance next year.
Great news from both fronts! US retail sales up is basically saying more purchase of chinese goods! Well done all around! Long live Nanjing Road! Long live Wal-mart! May we have 10,000 years of shopping with endless coupons!