I feel like so much Fantasy written for an adult readership is just Tolkein and Sword and Sorcery imitations. So little originality in world creation and plot.
The best recent Fantasy literature I’ve read have all been YA books, the Abhorsen series, the Wind on Fire trilogy and everything written by Trudi Canavan are all more original in world building and plot, have better writing and character development and are in particular a lot better at creating great Female characters than 90% of stuff written for adults.
Trudi Canavan books are amazing and wonderful. Abhorsen series is also incredible and i love them all (Sabriel < Lirael)