There are more than 5 exchanges with over 1000XBT volume.
BitStamp
BitFinex
Okcoin
Btc-e
LakeBtc
BtcChina
Huobi
Kraken
And some others as well, but their volume is generated mostly by Altcoins, for that reason I didn't mention them.
Hard to compare the volume when some exchanges are charging 0 fee.
I agree that the 0 fee is making it more easy to manipulate volume by buying your own sell orders.
Even if the Chinese exchanges didn't have 0 fee, then they still would have thousands of XBT as daily volume.