1500? For decades everyone has looked at the times run by the Chinese women in the 90s as nothing short of sinister. Many fans ignored those records existed. 3:56 and faster was the territory of 1990s communists, run on their own tracks under an admitted state sponsored doping program. Surely no one would ever come close to the 3:50 WR. It wasn't possible until perfectly pretty, fair skinned, big eyed Ganzebe Dibaba comes along, untouchable, and breaks the unbreakable world record. Of course, not long later, she's busted with dozens of loaded syringes of EPO and steroids. They didn't see the needle sticking out of her arm though, so I guess she must be clean.
10,000? Another untouchable world record of the state sponsored doping Chinese 1990s era was Wang Junxia's 29:31. That night, on a chinese track, with only chinese competitors she took nearly 45 seconds off the existing world record. In the 20+ years that followed only a couple women managed to break 30:00, none within one-second-per-lap of the world record. It was unbreakable...forgettable. Until Almaz Ayana decides to enter the Olympic 10000 on whim. She'd never run the event before in her life, but shatters the unbreakable world record running 29:17.
Steeple? An event where the 9 minute barrier had been broken only eight times by four individuals; where the 8:52 standing world record was scoffed at by competitors as soon as it was run, and was later confirmed to be the result of EPO abuse; where no woman who hadn't yet failed a drug test had run faster than 8:58...we get an 8:44? Eight seconds faster than the existing world record, that was run by a convicted drug cheat, and 14 seconds faster than the next best time?
Which event gets your vote as "most vials of EPO consumed to produce said result?"