I am not sure.
That's a really hard question. I will have to think about it for a very long time and in the mean time, I can keep on watching all of them 😊
That would be One piece for me.
I haven't been watching anything else these days and even with One piece, I still need to binge watch couple of episodes to catch-up with the latest story.
That would probably be Kanata no Astro for me.
It's set in a futuristic universe where humans can travel faster than the speed of light using wormholes and such.