What you would be proclaiming here the Bible does not teach, though it is taught in some denominations.
let's examine your original post.
"1.The water was the means God used to carry Noah and his family to safety. The sin of the world was washed away in the flood waters. The like figure or antitype is the NT water baptism. (Acts 2:38, 22:16)"
The waters did not carry Noah and the others to safety, the ARK did. The waters were God's act of condemnation upon the world. The whole world was flooded and the ARK road safely above those waters until God's Judgement was complete. The water could be said to have born up the ark upon itself. Note also, the ark was "closed up" by God Himself and not man.
"2. Notice verse 21 makes specific mention of the process having nothing to do with the removal of filth from the flesh. (This is a reference to bath water) Thus, the comment points to a spiritual transaction taking place."
Peter is not making a distinction between "Baptism" and "bath water". What he is saying here is that the ordinance of Baptism cannot cleanse one of inward filth and sin (the sin nature that resides in us all), because only the application of Christ's shed blood can do that. Comparing the flood to Baptism is utilizing the idea that just as the ARK was supported by the waters of the flood, so to are our consciences supported by this act.
"3. The scripture mentions that baptism is the answer of a good conscience toward God. Our own behavior, and in this particular case getting baptized, is what prompts a good conscience. The result is to be free of guilt. God is the giver of the Holy Ghost and we have no control over that other than asking for Him to give it."
The act of being Baptized does not, as you say, "... prompt a good conscience.", as if some how you are changed by it but rather is carried out "by a good conscience", as the first act of obedience to Christ. Baptism does not make one free of guilt, the one carrying it out believes that the shed blood of Jesus Christ is sufficient to cover all his/her sins and therefore is blameless. Out of a good conscience that person follows his/her Lord's example in Baptism. Baptism is not required for salvation. The thief on the cross with Jesus, was never Baptized into Christ's Baptism nor was there any mention of him ever being baptized at all.
Indeed one does need to be "Born Again" to be saved and this is the sovereign act of the Holy Spirit. We have know part in being born anew. We are the "passive " recipients of this new life and have no more part in it than we had in our physical births.