Your picks of mediocre or lousy vocals with great musicians!

The Byrds did wonderful versions of Dylan songs. 

Can't think of any other Dylan covers I enjoy as much as Dylan's.

Dylan's is a case of an effective voice.   Not good at all rally technically.  He's also not a great musician either some in the know say.  For all it matters.

I would also rather hear Lemmy sing his stuff than anyone else. Its a unique though technically flawed instrument as well.

Then of course there is the case of the man Johnny Cash himself.  Often a great but limited and flawed vocalist who probably would be thought  of lesser if any other way.

The Grateful Dead and Phish all members.

Who's the OP? Tater? Totally disagree with the entire theme of the thread. Inferior vocals compared by whose standard? Would Louis Armstrong be considered Inferior?  Kate Bush? Joe Cocker? Is it inferior or different? Or is it just personal preference?

Probably the absolute worst is "Wilford Brimley with the Jeff Hamilton Trio".
I can't understand why Jeff Hamilton did this album, Brimley's vocals are absolutely the worst!