I took the test. I chose the more familiar check box over the toggle.
But I wonder if preference is important here. Is it more valuable to see people actually using it and make your choice based on what people notice/use easier. Your test tells us where to look and make a choice between two options where the consequences don’t really matter to us.
My gut says that a quick mock up of a prototype and test with people around you would be a lot more useful to you here.