> But I still feel Windows itself is not a productive OS. I'm big on keyboard shortcuts but MS is very much mouse based.

Maybe you should read the help file instead of going on "feelings". Every UI widget in Windows can be operated from the keyboard.

> Being required to use my pinky to try and hit CTRL instead of my thumb to hit COMMAND to do simple things like copy and paste is HUGE to me.

Oh come on. You're just making up reasons to dislike it at this point. "The shortcut key is a half-inch further away! THIS IS AMAZINGLY IMPORTANT MIND-BLOWING SUPER-FLAW!"