I went against the common consensus here and voted for Crawford; I think her acting looks better in retrospect. Acting styles change, and they don't always age well. Before the pandemic, I got to see KING KONG (1933) on the big screen. I surprised to conclude that the film's acting has aged worse than its special effects; Fay Wray's Silent-era style fidgeting was more distracting than a 90 year old model gorilla.
Davis was a theatrically florid actress. I imagine that's why many love her work but, to my eyes, she too often seems hammy. If she was great in EVE, JANE and CHARLOTTE, it's because those roles warranted flamboyant performances. Her single best performance was THE LITTLE FOXES, which was uncharacteristically restrained. Otherwise, I just find her to be ... a bit too much.
Crawford, in contrast, was a generally non-fussy, non-mannered actress. It's why she was largely dismissed by critics of the day, but why I think her acting generally looks more natural now. Which isn't to saw she was always that good. She could be hammy too (mostly in the 50s) and sometimes weirdly tense. But put Davis at her best up against Crawford at her best, and I'll take Crawford.
Not that anyone asked, but I think Stanwyck was consistently better than both of them. But the single best performance any of them gave was Crawford in NIGHT GALLERY. I don't think Davis or Stanwyck on their best day could have topped that, and it makes me think Crawford had untapped reserves of talent that we never got to see.