I have read quite a few books in the list (already 12 in the top 30), but overall I was not impressed. Fiction usually feels like a waste of time to me. There are so many things to learn. Why bother with fake stories? I read every day, about one book per week, all year round, and it's almost excursively non-fiction. Nowadays at least, as I learned the hard way that all the famous "classics" are not for me as they just reflect the shortcomings and narrow-minded of people in the past; people who didn't know anything about modern science, and especially neurosciences, genetics and psychology, and often believed in god(s); people who didn't know that love was a set of hormonal and neurochemical reactions rooted in evolution; and people who followed ridiculous social rules of a time governed by stupidity and ignorance. And in general, I think that nonfiction books are better and provide really useful info. The last book I read was Sexual Harassment and Assault Response and Prevention (SHARP) Guidebook Paperback – November 6, 2014 by Department of Defense, and it was so interesting and useful. I did it because I needed to write on it, and also this source
https://supremestudy.com/essay-examples/army-sharp/ provided me useful Army Sharp essay samples, which actually helped me to finish writing. And that's the task I prefer, because writing fiction books is not that useful, and provides me less. So I think that if you have a chance, then choose to read something really useful.
As a form of (mild) entertainment, Candide, Great Expectations, The Count of Monte Cristo, The Three Musketeers, Dangerous Liaisons, or Hamlet (and other Shakespeare's) were perhaps fun enough to read when I was a teenager. However I hated Madame Bovary, Don Quixote and In Search of Lost Time.
The Odyssey, The Canterbury Tales, Gulliver's Travels, Frankenstein, Dracula, and The Metamorphosis are just so stupid... (I can't stand anything irrational).
Faust, Paradise Lost and the Divine Comedy are meaningless for an Atheist.
Lord of the Flies
happened for real and did not happen at all as the author imagined (quite the opposite).
Brave New World and 1984 proved completely wrong in their predictions of the future and just highlight of the shortsightedness of the authors.
Waiting for Godot : a boring waste of time...
A Passage to India, War & Peace, Anna Karenina, Les Misérables, The Remains of the Day, and all the Charles Dickens are all right, but not really worth the time to read them when real history books are available. Good enough as movies though.
EDIT: Novels and plays are useful as practice to learn a new language because they are rich in vocabulary. I read all the Shakespeare's when I was 18 and learning English. I of course preferred the "biographical" ones (as biased or fanciful as they may be) and disliked the outlandish rambling that was A Midsummer Night's Dream. I read Goethe and Kafka when I was learning German (I probably would have a hard time now as I haven't practised it for a long time). I wanted to read The Tale of Genji in Japanese, but it was too difficult and too long in my 2nd year of learning Japanese, so I had to make do with the manga version.