[CatoRenasci]

Aristotle whose dialogues were still known to Cicero, and were said to be written in a better style than Plato's.

That wouldn't be hard. I have never found Plato a particularly enjoyable read, apart from is thoroughly rotten philosophy.

[aristeides]

Have you read Plato in Greek? I consider the prose of Plato (as well as the prose of Herodotus) to be among the most pleasing in all literature, in terms of style.

By the way, Cicero, who was no mean stylist himself, was qualified to judge prose style.