I LOVE the book Love you forever by Robert Munsch.
I sing the love you forever song to my kids every night when they are asleep like the mum does in the book - my kids now sing it back to me!
This book is just beautiful, I do the exact same with my cherubs also This book and Wilfred Gordan would be my special two. But although they are my favourite, they're not necessarily my kids.

My kids adore the very cranky bear and we're going on a bear hunt ( sensing a theme? )

We also borrowed a library book before Christmas that they loved, come down cat. I didn't really rate it, bit lost count of how many times we read it.