Harley, you make an excellent point. The cult obsession with Mary was not a teaching of the RCC at the time of Luther, Calvin, and Wesley.
Didn't I read earlier that the Immaculate Conception didn't become official until the late 1800's?
That's well after the life of all of them.
The Immaculate Conception was not DEFINED until the nineteenth century, the Feast of the Immaculate Conception had been celebrated for centuries. So, your contention that none of this was "taught" is erroneous.
Mary's perpetual virginity was taught and defended by these Reformers, Lutherans have never rejected this.
http://ic.net/~erasmus/RAZ460.HTM
Mary is new doctrine by Church history. The Immaculate Conception was created in 1854 and the Assumption as late as 1950. Kolo can correct me but I don't believe the Orthodox place much store on some of these doctrine.
Everyone (Protestants, Orthodox, Catholics) will acknowledge what a wonderful person Mary was but Catholics have taken this over the top.