I don't know all the figures, but I do know that Madworld outsold Vanquish (combined) in North America.They can't do a Vanquish 2 since SEGA has the rights. Plus Mikami left the company and it was his baby.
I don't have exact sales numbers on me but I believe it's, from best to worst:
Japan
Metal Gear Rising
Bayonetta
Infinite Space
Vanquish
Anarchy Reigns
Wonderful 101
Madworld
North America
Metal Gear Rising
Bayonetta
Vanquish
Wonderful 101
Anarchy Reigns
Infinite Space
Madworld
Worldwide
Metal Gear Rising
Bayonetta
Vanquish
Wonderful 101 = Anarchy Reigns = Infinite Space
Madworld
I could be off on all of this though.