Off the top of my head, and reserving the right to change my mind dramatically if answering the question on a different day...
Batsmen
1. Bradman
2. Grace
3. (intentionally blank)
4. Richards
5. Hobbs
6. Tendulkar
7. Hammond
8. Lara
9. Ponting
10. Hutton
Bowlers
1. Marshall
2. Barnes
3. McGrath
4. Warne
5. Murali
6. Hadlee
7. Lillee
8. Ambrose
9. Spofforth
10. Imran