No Philo?
Phil was very all around: singing, playing and songwriting, but, it's hard to call him the best at any one thing, as opposed to Hendrix, who many believe is the greatest guitarist of all time. I actually went back and forth about the bassist. I thought about Jack Bruce, Andy Fraser, Chris Squire and Larry Graham.
No such issue about the Vocalist. Rodgers, IMO, is the starting Singer of any rock all star band.