1. Why the gopis are the best devotees

    After taking to devotional service under the regulative principles, a person may come to the platform of spontaneous love of Godhead, following in the footsteps of great devotees like Narada and Sanaka and Sanatana. The Supreme Personality of Godhead then recognizes him to be superior. The devotees who have developed love of Godhead are certainly in an exalted position.

    Of all these devotees, the gopis are recognized as superior because they do not know anything other than satisfying Krsna. Nor do the gopis expect any return from Krsna. Indeed, sometimes Krsna puts them into extreme suffering by separating Himself from them. Nonetheless, they cannot forget Krsna.

    Srila Prabhupada, The Nectar of Instruction, Text 10 Purport