I am big fan of Dicaprio specially his teen roles in 'This boy's life' 'What's  eating gilbert grape' 'Marvin's Room' and 'The Basketball Dairies' . May be 'The Great Gatsby' will give him the opportunity to win an Oscar. 
I do like Angie, Pitt, and Depp. Angie in 'Girl, Interrupted', 'Gia' 'Changeling'and 'Mighty Heart'. Yet to watch her Directorial Debut in 'In the land of blood and Honey'. Pitt for his role in 'A river runs through it', 'Legend of Falls', 'Babel', 'Seven', and 'The tree of life'. Depp in 'Whats eating gilbert grape', 'Donnie Brasco' , 'Blow', and 'Sleepy Hollow' . 

I like Jake Gyllenhaal because he is very talented actor. After watching 'Jarhead' and 'Love and other drug' I am his huge fan. Britney Murphy for her role in 'Girl, Interrupted' and 'Uptown Girls'. Talking about 'Uptown Girls' I have to mention Dakota Fanning as a child actor she was way better any leading actress. I haven't seen any of her recent movies. 

In bollywood my personal favorites are  Ajay Devgan, Saif Ali Khan, Abhay Deol, Rahul Bose, Ranvir Kapoor, Abhishek Bacchan, Tabu, Rani Mukherji, Konkona Sen, Nandita Das, Soha Ali Khan, Siphali Chhaya, Priyanka Chopra.