Natalie Maher from Harpers Bazaar called "Best Friend" a "standout from [Brandy's] nascent catalogue, as she floats over the airy instrumental, declaring: “You’ve always been here right beside me / So I call you my best friend.” In a review of parent album Brandy, Complex found that "even when things become a bit doe-eyed, as they do on [...] "Best Friend," the album’s mix of sharp soul and hip-hop production keeps heads bopping and things from teetering into corniness."
Natalie Maher from Harpers Bazaar highlighted "Best Friend" as a standout track in Brandy's early work, praising: “You’ve always been here right beside me / So I call you my best friend.” Complex magazine found that despite some overly emotional moments on the album, including "Best Friend," the mix of soulful and hip-hop elements keeps listeners entertained and prevents the music from becoming clichéd.