My main experience with a pre-recorded tape was when Harry Weisfeld played the Mercury recording of Gershwin's Concerto in F, which I owned in its original vinyl version. It was the first time I had heard the conclusion of the piece without any distortion and with full bass, as the record grooves went almost to the edge of the center. Had we recorded the record, we would have also recorded that inner grove distortion and compression. So for that reason, I'd have to think the pre-recorded tape version, if done well (and Mercury certainly did), should be better than the vinyl, as you can avoid the shortcomings inherent in the vinyl pressing.
That said, I guess if you had a perfect, uncompressed vinyl record that you played back and recorded to R to R with a particular cartridge whose sound was not flat but which you preferred, you might like the sound of the tape you made over the pre-recorded tape.