I'm going to be a bit morbid here, but of all the diseases or mechanical ways to die, which would be your LAST CHOICE if given a preference. Dead last, so to speak.
There is a certain cruel and unusual method of execution that I have some knowledge of. I remember it involving being force-fed honey and cream and then being left to rot in your own excrement.
Also known as the boats, is an alleged ancient Persian method of execution mentioned by Plutarch in his Life of Artaxerxes. It ostensibly entailed trapping the victim between two boats, feeding and covering them with milk and honey, and allowing them to fester and be devoured by insects and other vermin over time. (Copied from Wikipedia)