Let me try and explain it to you this way. Its like a child who wants to ask a favour of their father, but this child knows that he has not always listened well to his father, so he decides to go ask his brothers, and his mother to come along with him. Some of his brothers have listened and obeyed their father much better than he, and his mother has always been good and kind, and he knows the father loves and adores her so much because of this. This child knows that if these good brothers , and this loving mother of his ,plead for him ,on his behalf, the chances of his father granting him the favour are much more likely.
As far as the angels and St Michael, they are spiritually higher beings than humans, and we will be conducted by them in heaven. Those angels who chose to stay and serve God, never faltering and being obedient, have never sinned against God like we humans have, and they very much want to help us in our service to God, as well as protect and guide us, which is why God designated each and every soul their very own angel.
I do understand your line of thinking, and quite honestly Halfabo, the FACT that we both believe that Jesus is the path and way to salvation is the most important . That is what ALL the saints, our guardian angels, and all the choirs of Holy angels believe as well . We can agree to disagree peacefully, on other issues, with love in our hearts for each other, and with praise and thanksgiving that Jesus died for all of our sins, and that we both strongly believe that, and praise God and thank Him for that fact.
What you are describing is indeed what an earthly father would do. If the child is disobedient at times, the father might ignore the child for awhile, maybe to teach him a lesson. God, is not that petty. God does not ignore His children's pleas no matter how the child has behaved in the past. He forgives far more readily than any earthly father would do. Think of the parable of the prodigal son. "son, you've been away for awhile. It doesn't matter come and tell me what you need." That is how God forgives and answers prayers. It is God's nature that counts, not ours. No matter how many people you take with you, it will not gain God's attention any more than going to Him alone would.