The 2016 World Series - Chicago Cubs vs. Cleveland Indians

First of all, and most importantly, series is both singular and plural, so you don't need to say "series's."

Secondly, from my understanding plenty of people consider the 2016 Series one of the best ever. However, it's worth noting that the series, while certainly entertaining and massively significant in terms of cultural impact (for modern baseball, at least) did have its fair share of blowouts that, to my mind, lessens its quality when compared to a series like 2017.

Would it be considered an all-time great series if the Cubs weren’t involved? Say if it was Indians Cardinals or Indians Giants instead but with the same exact results otherwise? Doubtful.

I think it's really looked favorably upon because of how game 7 played out. It had everything. Drama, tight game, the rain delay allows for people to question whether or not the Indians win that game if not for the Jason Heyward ra ra speech to the Cubs during rain delay, and of course the ending of the long tortured Cubs championship drought. It had 2 teams against each other both with long droughts (I think #1 and 2 longest if not mistaken) and went to 7 games with a drama filled 7th. I don't think anyone looks back upon it negatively outside of people upset that the Cubs fans got to celebrate.