Best Playoff Series Without A Decisive Game?

Despite it feeling like they just started, this year's playoffs are already nearing the end. In fact, after today, there will now be a single digit, in terms of maximum games left (9). So, it feels like a fitting time to ask this. Decisive games are an integral part of the Postseason structure. In fact, we haven't had a playoffs without one since 2009 (due mostly to the Wild Card round). But sometimes, a playoff series doesn't even need one to be exciting. So, what would you consider to be the best playoff series in MLB history that didn't go all the way , and why? For example,

Reported by r/baseball3h ago