I would strongly vote in favor of Ubuntu for your first distribution. It's still wildly popular, and despite some mishaps, Canonical tries pretty hard to make s

I would strongly vote in favor of Ubuntu for your first distribution. It's still wildly popular, and despite some mishaps, Canonical tries pretty hard to make sure it's a smooth installation process, and has enough standard applications installed to be useful right away. If you just want to get your feet wet, and especially if you'd rather not mess around with the command line unless absolutely necessary, Ubuntu is great. Depending on your needs, Fedora is also quite usable. It leans more in the FOSS direction, and while it is fairly bleeding edge with regards to Linux specific tooling, it is somewhat more hesitant to include non-free software, which may include device drivers and firmware. Last I checked, Ubuntu still had a higher degree of Just Works(tm) than Fedora for this reason. Fedora is very similar to RedHat and CentOS, so if you're looking for a business-focused distribution, this is a strong contender. Might not be as useful as a casual desktop install though. Linux Mint is also wildly popular. It's Ubuntu-based, but it leans much less in the pure-FOSS direction, and is willing to include more grey area tools like video codecs and non-free device drivers. It also uses the Cinnamon desktop environment, which may feel a bit more familiar if you're coming from Windows. Some of my colleagues swear by it, so I think it's worth checking out. Of course, take this with a grain of salt. I run Arch Linux and am perfectly happy to tinker around with the deepest guts of my system when needed. I wouldn't actually recommend that to a new user though, while I enjoy the absolute freedom to dive that deep, it can occasionally be quite frustrating.