hmmm That's a hard one! She has such amazing songs, there are tons of her songs that I like. Maybe i wont be done por tomorrow if I tell you all of them. But most of all I like the albums 'circus' and 'blackout' both of these albums are full of amazing songs so lets just say that my favorito Britney songs are the songs of 'blackout' and 'circus' and all the other songs of hers come on the segundo place.