Which intelligence subtype do you consider the most important?

[Dreckssau]

i just think it's an overrated buzzword people automatically spam in discussions like this

I think of it as 3d thinking. I never thought of a sophisticated defintion. Apparently Gary Kasparov scored low on spatial tasks in the IQ test he did for Spiegel. So, it does not seem to be as necessary in chess.
They call it 'figural-bildhaftes-Denken'.
https://www.spiegel.de/politik/genieblitze-und-blackouts-a-1a1cbaba-0002-0001-0000-000013526693