I'm curious what people think about this. I really only started reading fantasy hardcore when I was maybe 21, after the first GoT season. Then I went down the rabbit hole.
Even so, I really haven't read much fantasy, so my experience is limited (I'm 24 now). I'm most curious to see what other modern fantasy series people think are the best of the best.
Remember, it's top five SERIES only, no standalones, although you can choose a series that has yet to be completed. You don't have to rank the series themselves, just state the top five in general (unless of course you want to rank them, then go ahead.).
Here are mine, listed in no particular order. from my somewhat limited experience with fantasy "literature".
A Song of Ice and Fire - George R.R. Martin
The Second Apocalypse - R. Scott Bakker
The Fencer Trilogy - KJ Parker
The Book of the Long Sun - Gene Wolfe
Harry Potter - J.K Rowling
I imagine this list would change a bit if I'd read more, and there are still quite few well-known series that I haven't read, chief among them being stuff like like the Caine series by Matthew Stover or Abercrombie's First Law trilogy.
Out of my top five, if I had to choose, TSA is my favorite, but I think The Book of the Long Sun is the best, at least from what I've read of both fantasy and sci-fi. I think the Fencer Trilogy by KJ Parker is prety incredible, but still flawed.
And I just had to put Harry Potter in there. I was like, maybe 8 or 9 when I started reading them? They'll always have a very special place in my heart, despite how silly and irritating I sometimes find them now that I'm older and have, I guess, a more discerning taste.