User blog:CatFromVictorious/Favourite Series?

Just for fun! I'd like to see the answers! What is your favourite 'Magic Animal Friends' series so far? Series 1 : Books 1-4 Series 2 : Books 4-8 Series 3 : Books 8-12 Series 4 : Books 12-16 Series 5 : Books 16-20 Series 6 : Books 20-24