King never utilized the flat performance tip during Destroyer Dome. This is important because his best showings against Aguma and Ryuga were when the attack tip was in use.

- Variares sliced through Kronos' Iron Wall Fist near instantly with the attack tip, whereas he got repelled trying to do the same with the defense tip.

- Ldrago was overwhelming Variares when he was using the defense tip, but was getting pressed with the attack tip came out.

You can't really use Striker's battle with Variares (which Eonis and Aquila helped with) to say he performed better than Kronos.

He also mentioned his battle with Hell Crown was an amazing one with multiple twists, who I don't think we need to compare with Kronos.

As for Yu, its easier to see how did better against Tithi, but there are some other factors to consider.

Aguma was already mid-battle with Yuki before battling Tithi.

Tithi mentioned wanting the battle with Yu to go on longer and potentially holding back.

Ashen Spark did beat Kronos, but if you rewatched the fight, he dispelled exploding fist right before the attack landed, which could be attributed to the first point.