1. The topic of the “prologue” is the literary equivalent of “gun control” or “abortion” (or which way to position toilet paper on the holder)—and equally unlikely to generate “consensus,” general or otherwise. Furthermore, while you can bet most of us here have an opinion on it and a right to voice it, it’s questionable whether our opinions are relevant to your situation—or whether any one of us here really knows shit from Shinola ... (I get the two mixed up constantly)
2. I suggest you google “prologue or not to prologue” and read what professionals (editors and agents in particular) and other really wise people have to say about it. Many of them have very good lists of questions to ask yourself in order to get you closer to an answer for your particular situation and your story. Also, almost no stories, particularly in genre fiction, are truly original—so I would consult your past reading list and see how great authors in your genre handled similar situations.
3. Then, I would forget about and just write your story and deal with it later—as whatever you feel about it now is liable to change (multiple times) by the time you finish (and because any editor/agent worth her salt is going to have an opinion you’re gonna wanna heed, and you won’t get that until you’re done anyway). Bottom line: don’t let the question bog you down. It’s just not worth handwringing over—you can always go back and cut it or add one. And if you’re on the fence, write the damn thing, set it aside and be done with it—and if you change your mind down the road, rewrite it, rename it “Chapter One,” or abort it altogether.
4. Be wary of “absolute” opinions on the matter, as there is no one-size-fits-all answer.