#3 NXT Takeover: Brooklyn I
While most of the events on this list come from the past 2 years, this one goes way back to 2015, and contains arguably the greatest and most important match in NXT history, when Bayley dethroned The Boss, Sasha Banks. There was also a Ladder Match between Kevin Owens and Finn Balor, as well as the WWE debut of Jushin "Thunder" Liger, and while it's not as deep as others on the list, the big matches on the card have made sure it's gone down in history.
This was the first Takeover held over Summerslam weekend, and it's become an annual classic that fans look forward to, and it was the major success of this one that made sure Takeover was on the map.
This is certainly worth a watch every now and then, because it's a fun look back and what made Takeover what it is today, and the pure emotion between Bayley and Sasha is what still drives NXT to success today.