Luke: His favorite princess is Sleeping Beauty because she's gorgeous, she's not "waiting" for Prince Charming 'till he arrive and she's free and happy.
Calum: Jasmine (if it count as a princess) because of her long black hair and her tan skin, also because she's not in dress all the times and he thinks her clothes are comfy :)
Michael: Belle, in The Beauty and the Beast, because she doesn't stop by her first thoughts and first impressions of the beast, and she thinks more of the inner beauty than the outter one.
Ashton: Ariel because she's independent and has a pretty voice. Also, she's kind of rebel and she's determinate to get where she wants.
