which apocalyptic senario do you fear the worst?

[Hoofhurr]

I think plague pandemics are a lot less likely today. Human hygiene has come a long way, as has our ability to deal with pests that would carry it plus our ability to analyze the disease and come up with a cure or treatment for it.

Some new untreatable disease is still possible (e.g., an AIDS virus that can live for 7 days while flying through the air) but I see it as a lot less likely than it used to be.

True but we are trapping ourselves in the mindset that this end time event would take the form of a singular event and most likely it will be a series of events. Hygiene is a lot harder to maintain in the absence of potable and running water and a collapsed civilization. Viral/bacterial pandemics would be a lethal follow up catastrophe.