The original chart (below) is unnecessarily complicated and hard to comprehend. I generally don't post about bad infographics, but in this case Ed was able to re-do Microsoft's chart into the improved, simpler version you see above.
Honestly, the upgrade process is still too complicated and Microsoft should be ashamed of themselves. This deserves a new Mac vs. PC ad just by itself.
Here's the official "horrendous" (I don't get to use that word often) chart from Microsoft.