Fun topic. I'll start with an easy one.
Yu-Gi-Oh is the best TCG next to Magic in my opinion (fuck Hearthstone). Okay so Konami still treats their Western customers horribly even then there but hey, the game's still fun and going so it counts doesn't it.
...And that's about it for me. I hear Metal Gear Online is still fun...? But yeah. Do you have anything particularly "nice" to say?