This information may have been supplanted but newer studies, but one study determined that African Wild Dogs were the most successful pack hunters on the planet with a ~92% success rate. (success being defined as 'eating' after a hunt.

Edit: Opening line from the article - Wild dogs are the most successful hunters in Africa, with a kill rate of 80 percent.

And my favorite story about these animals is that they vote! https://www.science.org/content/article/wild-dogs-vote-initi...