Who is the Female Superstar of this Generation?

Hema Malani is thee biggest female star of the 70's. Sridevi is thee biggest female star of the 80's. Madhuri Dixit is the biggest female star of the 90's (ever!), But who will be known as the Biggest female star of this decade(2000-2010)? Personally, i think it should be Aishwarya Rai as she has always stayed on the TOP regardless of hits or flops. She has always been relevant. And at 35 is still doing great with films form Sanjay Leela Bhansali, Vishal Bhardwaj, Mani Ratnam, Akshay Kumar, Hrithik Roshan. NOt to mention she has the ever useful Bachchan last name.Whether you think she deserves it or not, She is also the most celebertaed actress of this generation. Rani Mukherjee is also one of the contenders as she has been around for a while and has delivered good films. But she was low in the early 2000's and is again low towards the end of the decade. Preity Zinta is another candidate who has had a great innnings but has faded in the past few years. Among the younger lot, Priyanka Chopra and Kareena Kapoor have actually achieved something noteworthy. Priyanka has not done a lot of great work and has not been around for that long. The decade is ending. Kareena Kapoor has just hit her peak after Jab We Met, before that she was not much. So, who do you think? Aishwarya,Rani, Preity, Priyanka, Or Kareena? I think either Aishwarya or Peity....