does anyone knows what is avril lavigne's favourite song from her songs?

ammm....i cant tell her fav frm all the 3 albums! but i can tell her favourites from her each album!
1) let go - losing grip! (mine is complicated)
2) under my skin - together! (mine 2)
3) the best damn thing - i can do better (mine 2)
well f1l1pa u r wrong! runaway its not her fav frm the best damn thing! i am sure its i can do better! cuz she herself told in an interview! and i saw that video! well she told those song i have mentioned above r her favourits frm each album!!!
i <3 3 of them!!!

I know that is favourite song from the album "The best damn thing" is runaway so far, but if is his favourite song from all song i dont know

Avril Ramona lavignes favirote song is goodbye from her new album goodbye lullaby