I'm do not see that there are major differences on proofs for the existence of God between Roman Catholics and Protestants. Most proofs originated by Catholics are fine with Protestants, and vice versa.
If the subject is really whether or not God exists, that is debated rather vigorously in good sized books right now. For a short but sound and readable proof for God, try the first 5 chapters of Mere Christianity" by C.S. Lewis
No, most Christians (Protestants are Christians also) believe in one God in Three Persons. God the Father, God the Son, (Jesus Christ) and God the Holy Spirit. Each Person is God, which makes up the one true God, but each one has a different "job" or ministry to perform.
Because Protestants confess to God and only God. The true forgiver of sins and the only forgiver. Fairly basic.
Protestants believe Jesus Christ is the Son of God, the Father. The second person of the Holy Trinity. God in the flesh.
Neither. Protestants believe that the way one believes in God should be simple, but Catholics believe that everything should be fancy and worthy of God.
yes
The Protestants
Protestants believe that everything in the Word of God (the Bible) is true and it is their only Holy Book.
No one has proven that God does not exist.
St George was a saint long before the Catholics and protestants split.
Roman Catholic AnswersMost protestants think that Jesus is God's Son. And most Protestants recognize Mary as His mother, but fail to recognize her importance in the economy of salvation and would deny her the title of Mother of God given her by the Council of Ephesus in 431 A.D.
If a father (God) doesn't exist, then no son can exist.
not necessarily; polytheism means that many types of God, or no God can simultaneously exist.