Good one @tylermunns. Yeah, Rock music can just be considered one branch of Pop music. How about Blues? My focus on Pop songs started in the late-60’s, when the album format replaced the 45 RPM single as the dominant format for Pop music.
I heard album after album with no really good songs, which is my first love in non-Classical music. Rock bands in the late-60’s and 70’s were more interested in exploring improvisation (often in pale imitations of Jazz), and in becoming virtuoso musicians, rather than writing good songs. So my attention moved on to singer/songwriters like Randy Newman, Jackson Browne, Neil Young, etc. I reserved my admiration of superior musicianship for the likes of The Band, Ry Cooder, and studio musicians (the L.A. guys of course, but also those in the Muscle Shoals studios---the recording team now known as The Swampers).
And like you, I consider the song "form" (verses, choruses, bridges, etc.) the determining factor in what makes for a Pop song. So when the debut album by The Dwight Twilley Band came out in 1976, I was stoked! They were a Rock ’n’ Roll band, but they wrote fantastic Pop songs, combining Memphis R & R with Merseybeat, an unbeatable combination. Their Sincerely album sounds as exhilarating today as the day it was released. Their follow up Twilley Don’t Mind has some great Pop songs, including the irresistible, hook-filled "Trying To Find My Baby", a great, great Pop song.
And then in 1977 Dave Edmunds’ Get It album appeared, and I discovered "The Master". 😉 Not just a great Rock ’n’ Roll guitarist, but one hell of a producer. He recreates the Sun Records sound like no other, as well as Spector’s Wall-Of-Sound. His albums with the Rockpile team (Nick Lowe, Billy Bremner, Terry Williams) are as good as Rock ’n Roll gets, with the emphasis on songs.
These days there are more good songwriters active than ever before. My musical taste leads me to the Americana genre, which is filled with great songwriters and singers, creating music as good as I have ever heard. It's a great time to be alive!