I dislike giving numerical rankings.
Alice in Wonderland by Lewis Carroll
Lolita by Vladimir Nabokov
My two favorite books ever. So I guess these would be 9.5's.
To Kill a Mockingbird by Harper Lee
Animal Farm by George Orwell
Moby Dick by Herman Melville
Frankenstein By Mary Shelly
I Robot By Issac Asimov
All very enjoyable. I ranked them in the order I like. So 9 to 7's here.
Harry Potter and the Order of the Phoenix by JK Rowling
Alices Adventures Through the Looking Glass by Lewis Carroll (Technically Through the Looking Glass and What Alice Found There)
I like other books in the series better. Still enjoyable though.
Don Quixote By Miquel de Cervants
Inferno By Dante Algheri
Hannibal by Thomas Harris
Stand by Stephen King
Wizard and Glass By Stephen King
Fellowship of the Ring By JRR Tolkien
Wastelands By Stephen King
Have not read these sadly. I got through like a third of Inferno, which btw along with Fellowship should be considered part of one work.