My favourite young children's books were 'The Adventures of Pip' by Enid Blyton (delightful stories about nature and wildlife), and the Sophie series by Dick King Smith. Also other Enid Blyton - the Wishing Chair and the Faraway Tree. And The Children of Green Knowe. I've also just bought a box set of The Worst Witch, which I can't wait to re read.
And I loved the 'My Story' series which were accounts of historical events from the point if view of the children involved. I wish I still had them, unfortunately they came from the library and I've never seen them second hand.
As an older child I loved all the classic 'girls stories' - Anne of Green Gables, Emily of New Moon, Little Women, What Katy Did, Dear Daddy Long Legs, Just Patty, Eight Cousins, A Little Princess, Pollyanna, Heidi. I also adore Eva Ibbotson's teen books. Also a lovely pair of books At the Sign of the Sugared Plum and Petals in the Ashes which are about the great plague and the great fire of London, from the point of view of a teenage girl. All of which I still re read.
I only discovered the Chalet School and Malory Towers as an adult, but I still love them.
And, and, and
. I think I just love books !