Which describes Mormonism better?

[DC Al Fine]

I view Mormonism as another Abrahamic religion.

[DC Al Fine]

I'd go with #3.  I think Mormonism is loosely Christian in the same sense Unitarian-Universalists are.

While Unitarian-Universalism has Christian roots and there are Christian UUs (such as myself) UU is not a Christian religion any longer.

As for Mormonism, whether you consider it Protestant depends upon whether one considers the Restorationist branch of Christianity to be a species of Protestantism or a genus of its own.

I always thought everything that wasn't Orthodox or Catholic was Protestant.

That would be a weird definition of Protestantism

Indeed. To be Protestants, they would at minimum need to believe in the three Solas, which Mormons reject, and probably believe in the triune God as well.

[DC Al Fine]

Anything other than Option 3 is ignorance, or prejudice as our "esteemed" afleitch so shows.

How would you define Christianity?

Mormonism's theology is very different from other forms of Christianity. For all of our differences, Catholics, and Protestants can agree on the Nicene Creed, more or less the same scriptures and so on. Even the Oriental Orthodox with their monophysite Christology can at least agree with the rest of mainstream Christianity on many major issues.

While I don't expect most of the forum to agree with my Calvinist definition of a Christian church, Mormonism's status as a Christian church can be questioned even under a relatively liberal definition. E.g. requiring monotheism.

[DC Al Fine]

Also, I predict that there will be new scripture within the LDS Church in less than 10 years.

Like a whole new book along with the Bible, Mormon etc, or do you mean something smaller?