Apples and oranges
The reason so many don't like it is because they are using it like every prior OS Microsoft has made. You can't. Now that I figured that out - I like Windows 8, but not more than Windows 7.
Apple is doing it a different way. iOS is from the ground up touch oriented. They are starting to integrate it into the OSX, but they are doing it a little at a time. MS decided to scrap the old paradigm and go straight to touch - but our desktops and laptops and the way most people work is simply not ready for it yet.