Which band is known as the most popular big band of the Swing Era?

The Benny Goodman Band is recognized as the most popular big band of the Swing Era primarily due to its pivotal role in elevating jazz music to mainstream popularity in the 1930s and 1940s. Benny Goodman, often referred to as the "King of Swing," led his band to significant commercial success, breaking racial barriers by hiring talented African American musicians, including the likes of Teddy Wilson and Lionel Hampton. His band also made history with iconic performances, such as the concert at Carnegie Hall in 1938, which is credited with bringing jazz to a concert hall setting, further solidifying its status in American music culture. Additionally, the band’s recordings of hits like "Sing, Sing, Sing" showcased a unique blend of intricate arrangements and energetic performances, contributing to its widespread appeal and lasting legacy during the Swing Era.