The contest is between being rich and poor with "all other things being equal". Anything else doesn't make sense, might as well ask: do you prefer being rich facing the firing squad, or poor having drinks with friends?
So, compared to being poor with an incurable disease? Yes, 100 times over.
>Having lived a bit in both worlds I’m not really sure it’s so simple as you’re making it out to be.
Rather it's so simple a choice that you had to add the "incurable disease" to the rich side to tip the balance.
They're not, but for comparing one should only account for things that are different because of being rich vs poor. Having an incurrable disease is not that, as it can perfectly well happen to both rich and poor (and the rich would get better treatment for it anyway, and it wont cost them their house or savings).