1. Prince Oberyn The Red Viper of Dorn- He proved he was the best fighter thus seen, he easily bested the Mountain but ultimately succumbed to emotions.
2. Kharl Drogo- From what we saw of him he was extraordinary seemingly bred for fighting so much so that King Robert Baratheon feared for Westeros if his hoard ever crossed the narrow sea.
3. Jamie Lannister- He was arguably as renown and feared as the Mountain, nobody wanted to face him, but I think it was clear Eddard Stark was his match.
4. Eddard Stark- Warden of The North, respected by all of Westeros, and Jamie Lannister wanted to face him really badly.
5. Vabrosi Water Danser- I forgot the name of the guy who was training Arya Stark but he was really good so good that he took down 3 knights with no armor on and armed with only a wooden stick, his skills was so great that they we're reminiscent of dances much like kimimaru taijutsu.
6. Gregor Clegan The Mountain- 6'9 ft tall man and freakishly fast for his monstrous size he truly was the most feared man in Westeros for sheer combat.
7. Jon Snow- Has the potential to be the best ever and his role in the rest of the books aside from what takes place this season he is to become commander of the nights watch and lead the revolt against Lord Bolton while aiding Lord Stannis Baratheon, and Jon Snow has defeated several swordsmens.
8. Sandor Clegane The Hound- Almost equally feared as much as his brother the Mountain.
I have a few disagreements. The first, Jaime was regarded (by everyone, even those who hated him) to be the greatest fighter in Westeros. Speaking clearly of when he had his sword hand and wasn't super malnourished. Second, People need to send Robert Baratheon some love! Also claimed to be a ferocious fighter with his war hammer, led a successful rebellion and killed Rhaegar (no slouch himself). Third, I feel Ned is a too high. He was always regarded as a very good fighter but never great. I feel as though Sir Barristan Selmy should definitely be above him (what. a. baddass.) and possibly even Sir Loras even though he was young, he showed renowned skill. besting even Jaime on an occasion or two. Those are my biggest disagreements for the most part, but solid work. + rep my man