Fast death is cheaper and less painful, though it’s sudden. Slow death allows you to say your goodbyes.
Fast death, most often, is when they aren’t ready to go yet. Slow death means it’s their time, and this is more natural.
So, do I want to say my goodbyes and die more naturally? Well, if I didn’t have to pay hospital bills, I wouldn’t mind the pain over time. Maybe this would give me time to manage finances to decrease the burden on my family. A fast, violent death would be too chaotic, imo.
Pain really wouldn’t be an issue for me. I’d prefer whatever that carried less burden, financially and with a peace of mind for those that were left behind.
Short answer, slow death is generally better because I can plan things out and leave people behind in peace.
