1. I think Amy Winehouse's songs are the best when comparing with the other two, as her voice is really special and she is talented.
2. Amy Winehouse is the most crazy, as shown in the newspaper, she had hurt a man in a pub few days ago.
3.Amy Winehouse is the most popular,as she has got many music awards when comparing to the other two.
4. Maybe Lindsay Lohan.
Hope I can help you.