I don’t know anything about Linux, though I have a nephew who swears by it. If it’s something I have to buy, there is no way it’s going to happen.
Linux is free, as is the support. There are few if any viruses to attack it since everyone focuses on attacking Windoze.
But, because support is free, sometimes you have to work at something to get it working.
You can find out some more at http://www.digitaltrends.com/computing/the-best-linux-distros-currently-available/ but forgive the editing of the article.