Why do people insist on comparing only things that are same? The same things are same, no point whatsoever comparing them: they're same! No, you should only compare things that are different, that way you learn more about their differences.

And what's better, an umbrella or a toaster, depends on the one's goals: if one'd like to fry some bread, toaster is more useful; if one'd like to cover from rain, umbrella is far superior, although toaster could used be too; if one'd like to drive a nail into the wall, toaster again is better; etc.