Why GIMP though? I thought Krita was pretty nice.

GIMP and Krita focus on different stuff even if some of their functionality overlaps. GIMP focuses on photo editing whereas Krita focuses on digital painting. This sort of focus affects what priorities functionality for each program gets.

Krita usually does as I want, gimp has a mind of its own.

On other words, gimp has much worse UIX and desperately needs an overhaul