#4. The Inner Circle vs. The Pinnacle
In AEW, Chris Jericho did a phenomenal job of bringing together The Inner Circle. However, it's safe to say their war against Pinnacle was the biggest entertainer. MJF, an absolute master of a heel, elevated the feud to the next level.
MJF's coup was developed in an organic way, which was a big part of its success. Although the feud ended with The Inner Circle prevailing, it paved the way for Jericho to start another rivalry. The scale and execution make it one of the best AEW rivalries of 2021.
#3. Thunder Rosa vs. Britt Baker led to one of the best matches in the AEW women's division
The feud between Thunder Rosa and Britt Baker was important, as it gave the women's division a major storyline. The rivalry started when Baker interfered with Rosa's NWA Women's Championship match.
The feud gained momentum at AEW Beach Break. Baker knocked Rosa out to secure a win. This did not sit well with Rosa, which led to the iconic Lights Out bout. The match received widespread acclaim for breaking down stereotypes in professional wrestling.
While the feud doesn't seem to have reached its end, both stars are on different paths as of now. A third match is possibly in the works, which fans will be eager to see in 2022.
It's beyond argument that the rivalry between the two mammoths of the AEW women's division is one of the most memorable rivalries of 2021 in AEW.