Since you are starting with a "blank sheet" then I change my opinion to Windows and use RealBand. It is a perfect match for BiaB and number of members here produce pro sounding songs with it. If in the future you want to pursue other DAWs the transition shouldn't be that hard.

Edited by MarioD (11/10/20 11:56 AM)
It's my wife's birthday tomorrow, she's been leaving jewelry catalogs all over the house, so I bought her a magazine rack.

64 bit Win 10 Pro, the latest BiaB and RB, Roland Octa-Capture audio interface, a ton of software and some hardware.