Hi Michael,
Thanks for you thoughts. My inclination was to go with Mac for the sake of ease, familiarity, and consistency with other lab computers. But it certainly gives me pause if you find Macs placing a “distant third.” About a year ago, I did intend on switching our stim presentation computer to Linux and bought a Linux machine with a high-end graphics card. But, though not completely new to Linux, I still struggled to get things up and running reliably. Maybe I’ll give it another go with PsychoPy 3.
I look forward to reading your publication on the topic!