Maybe there'll be space in my next one.
There is such a wide range of what constitutes Protestant belief that a stalwart Reformed believer may have more in common with a Catholic than with a liberal Episcopalian.
I tend to think that Protestanism in general is undergoing a second Reformation. With those affirming their faith as expressed by Calvin,Luther, etc establishing the orthodox branches of their denominations or finding new ones all together. In the choice of whether to follow Christ or Culture they have chosen Christ.