If they're stuck on "but its fake" nonsense then it'd be Taker/Foley in HIAC but with a preface that shit doesn't ever really get that crazy again. Plus the commentary and crowd reaction are amazing as well, honestly any match with a great crowd reaction would be good bc seeing other people that passionate about something usually resonates well.
I go with Bret/Perfect Slam 91 or maybe Bret/Austin Mania 13. Both felt like real sporting contest, both had great storytelling and drama, and both had fantastic crowd reactions. For a none WWF pick I'd maybe go for the 92 War Games. Love that match.