Hey!!..Don't compare these two artists..It ain't fair..Aly and Aj are more of a group while ashlee's just one person..On the other hand..Ashlee's music's more punkier and mature..Its not an appropriate comparison
Aly & AJ have been playing the piano and guitar since they were little and the wrote every single song on thier album except 4 the 2 cover songs Walking on sunshine and Do You Believe In Magic other than that they sing live and have amazing voices so i think they are more talented than ashlee simpson. But bep rocks is right u shouldn't compare 2 against 1 maybe Aly & AJ vs The Veronicas.
aly and aj, ashlee simpson there both good in there own ways (you can't compare ANY artists) there all different and are all good in there own way (example: Jane Doe likes Ashlee simpson and hates aly and aj, Jane Fox likes aly and aj BUT HATES ashlee simpson) you can't compare people are all different.