Well, OF COURSE MINE IS FROM A VIDEO GAME! AND UNDERTALE TO BOOT! I really like the Dummy remix, Tokyolovania, and SO MUCH THAT I CAN'T PUT IT ALL HERE!
I'm a fan of the Nightcore version of Unravel. Don't get me wrong, Unravel's normal version is haunting and I LOVE it, but the Nightcore version is so fast and angry and powerful. #MissingNo
Pretty much any Undertale remix is amazing. I don't know if this counts, but I've been listening to the Legend of Zelda 25th anniversary symphony a lot lately because it's all I have on hand at home without an internet connection. The Windwaker medley is amazing! (It's all amazing though)