Why-Oh-Why July?

[Sweder]

Surely the most celebrated of singing bassists was Paul McCartney?

Sir Paul doesn't make my my favorites - I don't really care how celebrated he might be elsewhere. I won't argue Maccas standing in the music world but personally I struggle to forgive him the Frog chorus or indeed a good deal of Wings I liked his work on Taxman though

It's worth pointing out that Lemmy doesn't make it either, but that's because Lemmy doesn't really play bass - he kind of marmalises his axe so that it sounds like bass and rhythm combined.
Played through a meat-grinder

Footnote: that site is interesting.
I see three Led Zep tracks in the top 25 bass lines (two in the top twenty) yet JPJ rates outside the top 20 bass players. The Who have only one song and Cream two. Go figure :o