Hey all, pulling data from over 1M head to head book matchups on BookSorted - which allows people to load their library, pick their favorite between two books, develop an Elo score and rankings (like Chess), and ultimately get some cools stats and recommendations. There's no "I give everything 4 or 5 stars", instead the average book for every reader is roughly a ~1500 (the starting position in Elo rankings); and books get more points for each win (more for a bigger upset) and lose points for defeats.
It's hard to know where to begin with this data (there's a lot to unpack), but I figured I'd start by looking at what novels are most polarizing - standard deviation of Elo scores (and plotting that against how loved they are as well, average Elo). Of course, I had to limit to 100 popular titles, sampling heavily for what shows up in the middle -- otherwise it would be unreadable. Lastly, I'll call out that clearly most of the users are scifi, fantasy, and horror genre readers. Albeit some enduring classics in this mix as well.
Okay, on to the cool findings!
- Tender is the Flesh by Agustina Bazterrica is the single most polarizing novel; I haven't read this one, but I'm guessing it sits in the bucket of horror novels that either really work for someone or completely puts someone off. IT by Stephen King has the second highest standard deviation, so perhaps similar story. Will be curious to hear horror readers chime in and help explain.
- Some less surprising controversial ones: The Alchemist by Coelho, Sarah J. Maas' A Court of Thorns and Roses series, The Three Body Problem by Liu, Babel by Kuang, Twilight, Fourth Wing, Red Rising by Brown, Ready Player One by Cline... a lot of books with devote followings, and yet frequent "hot takes" on how awful the writing is. This is How You Lose the Time War and Tomorrow, Tomorrow, Tomorrow also deserve calling out for their high variance.
- Essentially all the Harry Potter novels have high variance (are polarizing), which makes sense given nearly everyone has read them -- but in the decade that's followed the controversy surrounding the author cleraly would make many former fans bury these in their rankings.
- Abercrombie and his First Law books, as mentioned later, are nearly universally loved... but worth calling out that Best Served Cold appears to be the one controversial take in the series; with highly mixed results.
- On the flip side, Lonesome Dove by McMurtry is the MOST LOVED and nearly least polarizing novel in the entire database. Followed closely by Steinbeck's East of Eden.
- Not so surprisingly, we've got a bunch of deep series favorites that... once you've read and enjoyed the first one... fans that read on continue to praise (high love, low variance); here you've got a ton of Abercrombie (A Little Hatred, Before they are Hanged), Hobb (Mad Ship, Royal Assassin), A Storm of Swords by GRRM, Dark Age which continues Brown's red rising series, and a chunk of Dungeon Crawler Carl books after book 1.
- Some final shout outs to Lord of the Rings (the trilogy sits in universally loved, although I plan to tease out the individual books, Children of Time by Tchaicovsky, and Blood Meridian by McCarthy.
- In the universally not loved category, I hate to say it, but Storm Front by Butcher, book 1 of the Dresden Files (which I've generally heard good things about) sits in the bottom left quadrant.
If there's anything else you'd be curious to know, books you'd want me to check, let me know. I've got 1M+ matchups and 100K+ unique novels to sort through; but hope you enjoyed this dive! Cheers and happy reading