The fact that windows 8 is on your laptop does not prevent you from installing 7 on it. In this aspect, windows is better than OS X since you can install older windows (up to a certain point...) on newer machine if needs be. Try installing snow leopard on a 2012/2013 Mac!
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Windows 8 buggy? With all the 3rd party bloatware that come pre installed on most machine it's a possibility, but not microsoft's fault. I made a clean install for bootcamp use and except the fact that I'm not sold on the "metro" interface, it's by far the fastest/leanest windows to date.
Just because you don't like something, or are not good at using it does not make it a bad product. Try to be more objective