I don’t use the quantize function but instead I’ll align it all by eye and ear. If you’re doing drums recorded with multiple microphones then you must group align them otherwise you’ll get big problems - so group folder is the way to go. Once I’ve tidied drums then I align everything else to the drum hits, sometimes going down to individual notes. I always use cut and slide rather than audio warping because the latter will usually introduce distortion and odd noises, i.e. degrade the quality. So, cut and slide into place on everything from bass, guitars, keys, percussion, backing vocals, lead vocals, which as said takes a serious amount of time. Occasionally I’ll create a tempo map from the drums so that I can quantize midi in place, this works well if you’re using midi instruments, and it’s fast.
Mike.