Its a shame that 4K will take all the votes if we can only have one but hey! Its also a shame that we cant vote the maps up into the list either, even tho I think this maps are mostly fun and great to have on the list I feel we have a much larger amount of options to choose from.
Kuroneko dungeon - Dragon and Girl and Decoherence by LeiN- is my vote for sure, a lot of feels into this map.
A hard choice between grief & malice and blue zenith. I guess I'll pick blue zenith as it has nice JS packed in a marathon map. I'm not saying grief & malice is bad by any means, it's just blue zenith requires more stamina and control to play it.