I use Windows and Linux (servers) -- mainly so I can choose the best tools in either world. Linux provides a CIFS file system accessible from Windows. I use EAC to rip my CDs to wav format, and Linux to enclode to flac.
Incidentally, this doesn't so far seem to be a particularly informed thread, though opinions abound! Sure, not everyone can tell the difference between mp3 (or any other lossy format) & flac representations of a particular recording. For those who can't, the choice is simple: go with mp3 & save the space! For those who can, the choice is almost as simple: if you can afford the space, go with flac and enjoy the greater sound spectrum!
My point is, just because you can't see or hear something does not mean it is isn't there. Though that sounds a bit religious, for which I apologise.