1Ki 3:13 I give you also what you have not asked, both riches and honor, so that no other king shall compare with you, all your days.
1 Kings 3:13 implores the language of comparability. This is the same language used to establish negative attributes of God such as immutability, simplicity, perfection, and class difference.
It is overlooked by Kant and Fischer, and by all who reason upon this line of analogy, that the idea of God, or the absolutely Perfect, is unique and solitary. God is not only unus but unicus. There is no parallel to him. No true analogue can be found. “To whom then will ye liken God? or what likeness will ye compare unto him?” Isa. 40:18. To employ analogical reasoning in a case where all analogies fail, was the error of Gaunilo, and has been repeated from his day to this.
William G. T. Shedd. Dogmatic Theology (Kindle Locations 3121-3124). Monergism Books. Kindle Edition.
In 1 Kings 3:13, this is not the meaning God is attributing to Solomon. God is using the language to establish a quality difference. Solomon will be incomparable in the sense of scale. No one will be his equal. The language of comparability does not necessitate the meaning that is typically attributed to it.