I would certainly ask a Godly person to pray for me...Yes, the saints are only intercessors. Just like the Godly person you would ask pray for you. Anything the saints "accomplish" can only be done through the allowance (the power!) of Christ the King, your Dad in heaven. I think Protestants (and other non-Catholic denoms) misinterpret intercessory prayer, because many Catholics (by way of a shortcut), say they are praying to this saint or that. Other Catholics understand they are referring to intercessory prayer. Other denominations usually do not, as they jump all over this "shortcut."
So why pray to a Saint (intercessory or not) when a person can pray to Christ the King?
Please see my post regarding where the dead go when they die. They have no knowledge of what is occurring on earth and do not hear from the living.
As I said before, are you hungry enough for Jesus and truth as revealed by the Holy Spirit? Are you willing to lay down everything you know and love for Him, including your Catholic dogma? If your answer is no, then there is nothing more to say. If your answer is yes, then you have a wonderful journey ahead of you.