Liberal Protestants generally discard the authoritative nature of the Bible, while still asserting an overall independence of the individual. In the Lutheran Church, we've had extremists who push for total individualism or for a near-total interpretation of the Word by the clergy. A few Lutherans go beyond accepting the Bible as the inspired, unerring Word to an unhealthy worship of Scripture itself. Women's issues, including pastoral ordination, also divide Catholics from Protestants. Rome remains staunchly opposed to women in the priesthood.
Protestant churches allow women in the ministry.
With some of them, the battle is still being fought. For example, more liberal Lutheran bodies already have woman pastors, while those following the traditional, orthodox teachings steadfastly refuse to even consider such heresy. Meanwhile, there are numerous clergy, nuns, and laity who are pushing for women priests. We could look at almost any area in which a church might take a stand and find similarities and differences among Catholics, Protestants, and Lutherans. Included might be abortion, birth control, divorce, and a variety of societal issues.