Journeyed there and back again
Rather than descriptions of the books, what do you think about additional columns for scoring specific criteria? For example, 5 extra columns: World-building, Magic System, Characterization, Novelty, Action. For First Law, scores might look like 5, 2, 10, 6, 10 or something like that. I'd give Bas-Lag higher marks for world-building and novelty but lower scores for action and characterization.
When I updated the list and provided my own ratings, I found it challenging enough to remember how I would exactly rate a book I read maybe 10 years ago on a simple 1.0 to 10.0 linear scale, let alone provide such detail ratings for each of the dimensions for up to 50 books.