As for me, I strongly believe the baptism in the Holy Spirit is the most important. Acts 19:1 ¶ And it happened, while Apollos was at Corinth, that Paul, having passed through the upper regions, came to Ephesus. And finding some disciples 2 he said to them, "Did you receive the Holy Spirit when you believed?" So they said to him, "We have not so much as heard whether there is a Holy Spirit." 3 And he said to them, "Into what then were you baptized?" So they said, "Into John's baptism." 4 Then Paul said, "John indeed baptized with a baptism of repentance, saying to the people that they should believe on Him who would come after him, that is, on Christ Jesus." 5 When they heard this, they were baptized in the name of the Lord Jesus. 6 And when Paul had laid hands on them, the Holy Spirit came upon them, and they spoke with tongues and prophesied. Those believers that Apostle Paul spoke with told him that they had been baptized into John's baptism, if John's baptism was very much important to someone who had believed in the gospel, Apostle Paul would not stated as it was written in Acts 19 vs 4 that "John indeed baptized with a baptism of repentance, saying to the people that they should believe on Him who would come after him, that is on Christ Jesus."
Now take a deep thought on this (John 1: 24-33) Vs 24 Now those who were sent were from the Pharisees. 25 And they asked him, saying, "Why then do you baptize if you are not the Christ, nor Elijah, nor the Prophet?" 26 John answered them, saying, "I baptize with water, but there stands One among you whom you do not know. 27 "It is He who, coming after me, is preferred before me, whose sandal strap I am not worthy to loose." 28 These things were done in Bethabara beyond the Jordan, where John was baptizing. 29 ¶ The next day John saw Jesus coming toward him, and said, "Behold! The Lamb of God who takes away the sin of the world! 30 "This is He of whom I said, 'After me comes a Man who is preferred before me, for He was before me.' 31 "I did not know Him; but that He should be revealed to Israel, therefore I came baptizing with water." 32 And John bore witness, saying, "I saw the Spirit descending from heaven like a dove, and He remained upon Him. 33 "I did not know Him, but He who sent me to baptize with water said to me, 'Upon whom you see the Spirit descending, and remaining on Him, this is He who baptizes with the Holy Spirit.'
John was instructed to baptize with water so that while doing his assignment, Christ might be revealed unto him and unto Israel just as he had stated in the passage above. Therefore, if Christ has been revealed unto a man through the gospel, why then does he have to go back to that which was instituted to reveal the Christ?
Be baptized in the Holy Ghost and with the evident in tongues, Acts 19:6, once that is achieved, you do not need any other.
