There are two crucial components that are always present in a good vocal take. The first is technique. Good pitch and good phrasing have to be present in order to even consider keeping a take.
With pitch correction, deciding what to keep or not, is made more difficult. If the initial pitch is good, however, it is infinitely easier to comp a great vocal track.
I can remember so many times tuning a certain word or phrase to death, and in the end, it would have been so much easier, and much more time efficient just to re-sing.
The second essential component is “vibe”. My definition of “vibe” is feel and believability. Do I really believe what the singer is saying? Is the performance authentic? Many times the “vibe” is there, but the technique is not perfect.
If the technique is fixable, though, I will always go with “vibe”.