Since Syd left, I mean.

Roger is universally acknowledged as the better songwriter between the two, but Dave is virtually always considered the better singer. Granted, there are a few songs ('Comfortably Numb' verses come to mind) that Roger was better suited to sing, but in general, should he have stuck to songwriting and let Dave sing most vocals?

Examples of Roger tracks Dave might have been able to sing better:

'Shine on You Crazy Diamond' (WYWH)
The few tracks on 'Dark Side' Roger sings on
Most of 'Animals'

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