I'd put the SSD on the non marvell 6.0 ports. I get the feeling it will be easier to install windows on those ports. I'm not sure which is the fastest.
As for the other drives, the fastest mechanical drives can JUST get faster then what SATA I can do. They aren't even close to what SATA II can do. I'd put all the other drives on the SATA II ports. Save your other 6.0 ports for SSDs.