Never ridden with disk brakes, so I have no opinion, other than that look a lot more fragile than car or aircraft brakes. How do they fare, hammering day in, day out through potholes and weather? Required gripping force is probably lighter than that for drums -- that's a consideration for folks with arthritis.
I do know what I don;t want. I gave up on rim brakes over a decade ago -- less than a thousand miles of daily winter riding in salt and grit, and the rims wear right through. Brake pads last a month or two, but that's a minor hassle compared withself-destructing wheels..
I like drum brakes -- they go for tens of thousand miles with an annual squirt of grease and never give any trouble.