My top 5 pick are based on alphabetic order:

1. Brian Lara (For his elegance and ability to take the game away from you)

2. Sir Don Bradman (Just because of his sheer record)

3.  Sanath Jayasurya (Ability to play change the fortune of games in mintues, both Test and one dayers)

4. Sachin Tendulakar (For his ability to dominate any kind of attack in any surface, the brilliant technique and  his paddle sweep)

5. Vivian Richards/ Virendra Sehwag (Ability to sweep away the opposition before they realize they have been sweapt, Perfect entertainer)