My *NIX comments were about passwords, since they all use the same password system. Usability varies greatly between *NIX systems. But in your case the outcome would depend on whether these are previous Windows users, what distro you use, and whether you choose to use the Windows-like GUIs in Linux. Yes, they look just about like Windows. You could always adjust your competition so you win.
The outcome against Mac just wouldn't be fair. Install an application? Let's take MS Office. I can either go through that long install process with Windows, or I can just drop it from the DVD onto my hard drive with OS X.
Let's just see what YOUR comments were...post 557: If you or q want to go on user experience, we can talk right now because OS X has stronger passwords and a better user experience. What's that User Experience mixed in there for if you're ONLY talking about passwords? Oh that's right, you're just talking in circles and mixing arguments to try and quilt together some type of point based on all the yarn you've been spinning.
There you go again mixing OS's to suit your needs. So by your switching, I take it Linux would lose the bet. Thank you for your confirmation of what I already knew. I know you'll never admit a single thing about Linux being inferior in anyway, so I'll take this as affirmation of my point.
BTW: I already said if you combine the best features of Unix, Linux, OS X, and Solaris, you'd have a competitive OS versus windows.