1. Based Bobby Baratheon in his prime
2. Barristan Selmy in his prime
3. Jaimie Lannister in his prime
4. The Mountain/Oberyn
5. The Hound
...
...
...
9001. Arthur Dayne

Objectively.

Discuss.

Honorable mentions: Howland Reed, Aerys Oakheart, Stannis.