Ever since MS has been hyper-aggressive about forcing win10 down your throat and not caring about their users, I would like to convert. I'm looking for Steam support, hw acceleration (amd drivers), software-based audio enhancements (bass boost, loudness eq, etc -- audio is really important to me and I'm afraid this will require a bunch of "tinkering" and I don't really consider myself to be a "tinkerer"), a basic firewall that disables out-bound traffic to specific applications, and minimal use of console typing to do really simple things like mounting/un-mounting volumes, which probably translates into a more powerful right click "always admin" context menu like in windows -- or even double-clicking.
I've heard Mint or Ubuntu are first choices. I've tried Ubuntu several years ago and just got bored of it. Kubuntu might be on my list though. I really hope there's a good tweetdeck-like application out there, I like having instantaneous updates on who I follow. I was intrigued about reading some other completely different architecture flavors like FreeBSD, but I'm assuming that's way above my head and not feature-rich.