John, Paul, and Ringo formed the backbone of the band musically by playing rhythm guitar, bass, and drums respectively. This allowed George to explore his role as lead guitarist. It's hard to say who was the best song writer, but we can count Ringo out since he rarely wrote. He was still the excellent drummer that the Beatles required. John and Paul mostly wrote together which gave George further room to explore song writing on his own. John was a natural philosopher and artist that brought creativity to the Beatles. His "art" was balanced by Paul's musicianship. John and Paul wrote some very good songs together. George, on the other hand, was able to write great songs around his lead guitar almost completely alone. He was also the one to do the most/best after the band for this reason. Ringo hadn't trained himself to write, and Paul's writings were simple to the point of almost boring (which is why they were so popular) without John's creativity, but George became a well round song writer and musician even though he didn't have any hit songs with the Beatles. In the end, the band would have never been nearly as popular without John (or Paul for that matter), but still, I'm picking George as my favorite overall. By the way, if there is any truth to this paragraph that is great, but in the end it's just some stuff I've gleamed from only a surface knowledge of the band and could therefor it could all be crap.