Why do people still think Ryuma is > Mihawk?
To me sword god title implies two things - ryuma was WSS in his times and he protected wano like a diety.
Mihawk title implies only being top at the swordsmen but to me its because unlike ryuma he isn't associated with protecting any territory.
As each generation surpasses the old ones (general common theme) Mihawk either already surpassed ryuma or at least at par with him.
Zoro will inherit ryuma legacy. And, eventually he will face Mihawk and will surpass him.
So, for me EoS Zoro >Mihawk ~>Sword god
However, Mohawk true hype is yet to come during his own plot. Until then, if someone says ryuma >Mihawk then it shouldn't be be wrong based on their title meaning.