Your stannery is clearly clouding your judgement and evidently your memory because Ned said Dayne was easily the best Knight he'd ever seen. Dayne doesn't have a list of prestigious victims because he wasn't a hot headed shyt starter like Robert, that has nothing to do with his level of skill. He beat everyone put in front of him, trying to fantasy book his opponents is weak.
Oh and he was considered the greatest swordsman and the ideal knight while he was still alive, that didn't occur after his death, so wrong there as well. GRRM saying he'd be even with Selmy, a member of the Mt. Rushmore of Swordsmen, without his blade isn't the diss you think it is. With it, he's unmatched.
Peerless warrior> best knight. The hierarchy is implied.
The northmen don't have a culture of knighthood but that never stopped them from whooping southern knights like pits do poodles.
How was Robert a hot-headed shytstarter? Because he defended himself against a tyrannical king?
Again, greatest swordsman means nothing when the sword isn't the strongest weapon.
Hammer beats swords, poleax/halbryd beats hammer.
Dayne beat everyone put in front of him, until Ned Stark stepped into his path.
You know who else has that very same distinction, but with more names? Robert Baratheon.
Died undefeated, only father time could get the win over him.
You give Dayne a regular sword and Robert his hammer and the Star will fall just like the Lizard did.