Clip Studio Paint, Trad, and Photoshop gigachads need no explanation. The holy duo of digital programs. Cracked CS6 is a cornerstone of digital art culture. CSP is the golden standard for making comics.
Gimp is for both the technologically illiterate and programmers/engineers, or people that have never known better. The same crowd that will tell you that LINUX IS JUST AS GOOD FOR GAMING AS A WINDOWS BOX!!!
SAI is based for how lightweight it is, but not a true workhorse because of...how lightweight it is. Chinky in a good way, also baby's first cracked drawing program. Great watercolor brush and stabilizer. As far as you'll ever need to go if you're a hobbyist. Brushes themselves are a bit lacking, but the engine is super responsive.
Illustrator is only for graphic designers who spend $4000 of daddy's money on black clothes, Japanese jewelry, and knuckle tattoos. Look guys I made a chrome font and blew it out with noise and scanned black paper wrinkles. Fuck off commie. ......intranetgirl can still be my wife
Autodesk is for the poorfags who can't afford Apple products but still want to draw on a tablet. Probably as good as you're gonna get without buying an iPad.
Decent if you set up the touch controls properly and don't have a lot of brush lag.
I love Krita COPIUM it's just as good as Clip Studio Paint COPIUM Dave Rapoza uses it COPIUM and best of all COPIUM it's totally free! COPIUM - The only good thing about Krita is the chrome brush.
Obnoxiously shilled by rabid poors who are too scared to just crack PS or CSP. Their marketing team aggressively pushes it on places like reddit and 4chan
MSpaint is for when you literally don't give a shit, or are a mediocre artist trying to impress normies who are dumb enough to think that drawing something in MSpaint is a sign of skill, the real skill is drawing while wrestling the dogshit program trying to ruin everything you do constantly.
For pixel artists, I don't see Aseprite mentioned which is criminal. It's UI tries to be too cute sometimes though, which can be annoying. Supports animation