Which RAID 5/6/10? for SQL Server on SAS 10K

Which RAID config do i use for cost to performance optimize with SQL server that will running on Hyper-V.

This physical server will run 2 guest on hyper-V  (SQL server & File share).

System config are 6 x 300GB SAS 10K on RAID 930-8i 2GB Flash PCIe 12Gb Adapter.

Thanks.