Which Grand Slam is most prestigious?

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Tags

1. #champion
2. #tournament
3. #opens
4. #clear
5. #pretty
6. #novak
7. #wimbledon
8. #tennis
9. #federer
10. #prestigious
11. #french
12. #former
13. #djokovic
14. #events
15. #seems
16. #winner
17. #australian
18. #grand
19. #roger
20. #reigning