If the Neptune-class cruisers had been built, would they have made better helicopter carriers?
Short answerPossibly; their size and framing would help, although the conversion would still require a large and awkward aviation structure aft.
NotesThe projected Neptune-class cruisers have some potential for conversion to helicopter operations. Their greater size and different structural framing could offer a better starting point than smaller cruiser hulls. Conversion would not remove the fundamental compromise of placing a large box-like aviation structure over the after part of a gun cruiser. The result might be more capable, but it would remain an adaptation rather than a clean-sheet helicopter carrier.