I'll go ahead and be the oddball and admit that I like the mighty mouse; so long as I don't use it with dirty hands, it's fine. If I use it with dirty hands, then the scrollball gets jammed up in a moment, but a quick jet of compressed air makes it happy again. Four buttons and 360-degree scrolling rocks

That said, I do like my black Pro Mouse a great deal, and I have yet to use a lousy Logitech mouse.