There are a lot of lists like these on the Internet, and you got me curious to look at them, Ellen. Some are 100 BEST and some 50 best and so on. I realize that while I have read most and admired all on these lists, I didn't enjoy all of them. (Not a fan of Joyce's Ulysses, for example, and it's on most lists)
So the purpose is really relevant. Is it meant for educational literacy, general enjoyment of the greats, or to have what to talk about at a hoity-toity dinner party?
Some very enjoyable reads are not, and never will be, on these lists. I'm just trying to understand the question better.