Who wins?
History of Middle-earth vs Unfinished Tales
Unfinished Tales wins 82% to 18%. 21 more put them in the same row. From Lord of the Rings Novels Tier List. Pick a side.
gooseguy94 on History of Middle-earth: 12 volumes of drafts, for the truly committed
old_sandwich_9333 on Unfinished Tales: the Hunt for the Ring and Numenor stories are great extras
Lord of the Rings Novels Tier List: the full ranking