In my opinion, her albums 'Let Go' and 'Under my skin' are worth listening. The music is full of sense, it's emotional and energizing, making you think; it rightfully attracts attention. But with the latest album 'The best damn thing' Avril has changed. And I personally don't like the changes in her style and music. The songs are stupid and senseless, though some melodies (like one in 'girlfriend') are haunting. At the same time 'Keep holding on', 'Innocence' and 'When you're gone' are quite good. There's something in them, I must admit.
P.S. BTW, I hear Avril Lavigne is going to release her next album in November. Is that right?