In Lily's letter to Sirius, she mentions how Harry nearly killed the cat with the toy broom that Sirius got him. Well, what if that's the reason that Crookshanks has a squashed head and a flat face? <<< This makes perfect sense!
I like the second part, but they say in the book that Wormtail needed a lot of help from Padfoot and Prongs. So I guess he could have been second, but I feel like James and Sirius would have been first, and then completely focused on Peter.