I've used both. Pretty much the same. Apple just tends to be much more expensive product-wise.
Maybe I'm biased but Apple. Granted Apple has dipped in quality towards their products lately but every desktop/laptop that I had previously owned were microsoft and they sucked epically.
a warm apple pie cooling down on a south facing window!!!
I have windows 8 and it's pretty awesome!
an apple to the window<br />
the sound of a bus, winding away down the street
A smashed apple? A broken window?
They both suck. I use Linux.