A new avocado variety called ‘Pflums Best’ that displays an early fruiting season, precocity, vigorous growth, tolerance to wet soil, and large maroon fruit. The variety is also selected for its resistance and tolerance to common avocado diseases and various insects. Additionally, ‘Pflums Best’ bears fruit earlier, by one to three years, than its male parent ‘Brogdon’ and female parent ‘Choquette.’ The characteristic maroon skin of the fruit of ‘Pflums Best’ has a subtle texture and may be somewhat mottled with a light green color, and the flesh has an exceptionally delicious taste that is buttery and nutty. The fruit of ‘Pflums Best’ is approximately 6-11 inches in length, 4.5 inches in diameter, and approximately 25 ounces when ripe.