Hunter x Hunter has an AMAZING and unpredictable plot. There are so many features which distinguish it from others:
1. All the arcs in the series are linked to each other
2. It does not portray the main character as the strongest
3. The story does not focus only on the main character
4. Everything that happens makes perfect sense
Still, I wonder, why is it placed at the sixth rank? I consider it even better than Fullmetal Alchemist:Brotherhood. And I don't know how it can be ranked below Kimi no Na wa. Believe it or not, this is the best anime I've ever watched!