Which host OS is widely used in the industry for the landscape - SAP BPC 10 NW using SAP BW 7.2 as the back-end?

Dear All,

For the landscape - SAP BPC 10.0 NW using SAP BW 7.3 as the back-end,

i.e. Which OS is the widely used host OS for SAP BPC 10.0 NW in the industry? Windows? Solaris? Linux? or???

i.e. Which OS is the widely used host OS for SAP BW 7.3 in the industry? Windows? Solaris? Linux? or ???

Thank you!

Regards,

Peri