Sector antennas

If you guys were putting up six 60 degree sectors in 2.4ghz with 10mhz channels on the same tower, what channels would you use?

1+3+5+7+9+11

but.. interference will be good too, and 10 MHz channels are not standard to laptops or similar ; )

If you will use routerboard-like products with 10mhz channels, why don’t use 5ghz too?