Clip Studio Pro is purchased, I decided to do pencils and inks on the same drawing between both apps to see if Krita is worth keeping at all. So here is the result of the penciling phase.
I used to think Krita had really good pencil options, but after playing with pretty much all the ones I like... they just don't stack up to Clip Studio's standard pencil.
Clip Studio's pencil looks very close to a real penciled sketch to me, it even allowed me to do some really nice crosshatching. I tried crosshatching in the darker area under the chin with Krita and it didn't turn out well.
So far Clip Studio wins out here.
And in case anyone is wondering, it's a sketch of Light Yagami from Death Note.