John Chrysostom
If someone wished to know whether the baptism of the disciples of Jesus had any advantage over John's baptism, we would say that it had none.
Both baptisms alike lacked the grace of the Spirit. The aim of both was only to lead the baptized to Christ.
The disciples of Jesus did not wish to go constantly from place to place in order to gather those who desired to believe. Simon's brother had done this with him, and Philip with Nathanael.
So they instituted baptism, in order to lead all to Christ through it without difficulty, and to prepare the way for faith in Him.
That neither baptism had any advantage over the other is clear from what follows. From what? "Then a dispute arose between John's disciples and the Jews about purification."
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John's disciples were always envious of Christ's disciples, and even of Christ Himself. When they saw that they were baptizing, they began to tell those being baptized that their own baptism contained something greater than the baptism of Christ's disciples.
They took one of the baptized and tried to persuade him of this, but did not persuade him. That they themselves came to him, and not he seeking them, hear how the Evangelist hints at this.
He does not say that one Jew began to argue with them, but, "Then a dispute arose between John's disciples and the Jews about purification."
But note also the Evangelist's restraint. He does not use reproachful words. As far as possible, he softens the fault of John's disciples, saying simply, "a dispute arose."