Digitally I like to use SAI and stabilize the shit out of it!
I like to use the ink pen with no textures, although I do wanna try some.
And I use a Wacom Intuos 4, I think the size is called "wide" or something?
Brush size depends on the piece, and if I'm doing outlines or details or filling in blacks etc.

I like SAI as well with S-1 stability, and the regular pen tool on varied settings between the .01 and .1 thicknesses, but always on the slightly sharpened edge shape and opacity set to 98 most of the time

I've recently started using canvases starting out at 4000x4000 sizes because it's super comfy and I draw big anyway / 3\;; I feel it helps resolution as well, when you have to scale junk down but yeh

Also using some kinda bamboo tablet, nothing too special. / w\;; <-mostly oblivious to their own hardware hehehehuhuhuh;;;;;

I use a wacom bamboo (one of the older-ish ones with the buttons, I use buttons all the time...mostly undo and switching between brush/eraser) and firealpaca. I don't usually need much stability, but I did this ref
https://www.weasyl.com/submission/736291/clark-14
with ~8 stability. I also highly recommend that if your intent is superclean lines, you work with a HUGE canvas, with the added bonus of then having a versatile image size you can scale down or crop if you need.

also, if you haven't heard of it before, there is lazy nezumi which works for any program as long as you're using windows: http://www.lazynezumi.com/

if I'm inking in photoshop for some reason, I really like kyle webster's brushes. https://gumroad.com/kyletwebster