I used the CTL-4100 for around half my osu playtime, and then switched to the CTL-472 for the other half, dragging on both. Didn't really notice any difference. I don't have access to the CTL-4100 now so I haven't had a chance to compare them side to side though, so what I say isn't fully accurate. I've heard the CTL-4100 has pretty horrendous smoothing if you hover and no smoothing if you drag, but I don't know how accurate this is, and I didn't noticed anything when I was using it with OTD. You'll probably be fine with the CTL-4100 as long as you use OTD and drag.
I guess if they're the same price, the CTL-472 medium is the better option. It's bigger, so it's probably better for drawing as well. The CTL-4100 has a bunch of buttons though, and maybe that's better. Idk, I've never actually drawn anything with my drawing tablets in the 1.5+ years I've been using them, apart from smoke penises during map breaks.