A Taxanomy for Protestants

[Mad Deadly Worldwide Communist Gangster Computer God]

This is an interesting project.  However, remember that BRTD has described himself as "evangelical" on multiple occasions, justifying that on the basis that his own church is evangelical and that it practices adult baptism, which BRTD strongly believes in.  Of course, the 'evangelicalism' practiced by BRTD is more akin to the late 19th/early 20th century use of the term.

As for JCL, I don't recall him going into detail about his views on liturgy and church governance, so I can't speak much on that.

[Mad Deadly Worldwide Communist Gangster Computer God]

I'm not going to bother putting everyone's name up on the chart, but this is how R&P Christians would rank, from most progressive to most conservative.

opebo > BRTD > Progressive Realist > Harry > TDAS04 > Ernest/True Federalist > Scott > ilikeverin > Nathan > General Mung Beans > Jbrase > Simfan34 > GaussLaw > DC Al Fine > Cassius > TJ in Wisco > Never Convinced > BushOklahoma > JCL > jmfcst

I thought I'd include opebo and jmfcst for good measure.

[Mad Deadly Worldwide Communist Gangster Computer God]

I'm not going to bother putting everyone's name up on the chart, but this is how R&P Christians would rank, from most progressive to most conservative.

opebo > BRTD > Progressive Realist > Harry > TDAS04 > Ernest/True Federalist > Scott > ilikeverin > Nathan > General Mung Beans > Jbrase > Simfan34 > GaussLaw > DC Al Fine > Cassius > TJ in Wisco > Never Convinced > BushOklahoma > JCL > jmfcst

I thought I'd include opebo and jmfcst for good measure.

I think Harry might be to the left of Progressive Realist. I know you really dislike jmfcst but putting him to the right of JCL strikes me as a calumny. Otherwise this looks good to me.

I'm still hoping Al explains how he'd define the zero values on these axes.

While you probably have a point and my intense dislike for jmfcst did cloud my judgment somewhat, JCL and jmfcst would probably make good bedfellows with respect to theological conservatism.  (That is, they would make good bedfellows if it were allowed by the Bible. )  But, yes, gun to my head, I'd probably put JCL a ledge ahead of jmfcst.  I mean, jmfcst never went as far as to suggest that the Bible demands that every nation levy a flat tax on its citizens, as far as I recall.

[Mad Deadly Worldwide Communist Gangster Computer God]

I'm still hoping Al explains how he'd define the zero values on these axes.

This is still a first draft. I hadn't really thought out what (0, 0) is. I guess that's part of the problem; we think of everything relatively in Protestantism.

What's the average United Methodist like? That church seems pretty centrist, so perhaps that's a good starting point.

If you're including liberal/Unitarian Christian sects, why not Unitarian Universalism?  That church is about as big tent as you could get, though I'm not sure if that's what you had in mind.

Not that UMC would be a bad choice, though.  PC(USA) might be a good candidate, as well.

[Mad Deadly Worldwide Communist Gangster Computer God]

Yeah, thinking about it now, the UU's would be a bad example.  The UCC, on the other hand, is probably one of the most liberal Trinitarian denominations if not the most liberal Trinitarian denomination in America.  It may have once been rooted in Reformed theology, but it moved past that a long time ago.

The UMC would probably represent 'the center' best, if only because what they preach strictly varies by chapter and location.  Still, aligning the churches from 'left' to 'right' is obviously very difficult and I'd think most would oppose it given that churches do not want to be seen as political parties, even though that's where the divide among Christians is clearly headed toward.

[Mad Deadly Worldwide Communist Gangster Computer God]

Do Harry and PR believe in faith healing?

[Mad Deadly Worldwide Communist Gangster Computer God]

So I'm starting to make up a quiz for the compass. Anyone ideas for questions?

Here's what I have so far:
Left-Right
Literal resurrection
Female clergy
YEC vs. Evolution
Trinity
Belief in God period
Marriage
Divorce

High-Low
Infant vs Believer's Baptism
Preferred form of church government
Communion (probably 2-3 q's related to this)

Here are some, just naming them off the top of my head:

Left-Right
Abortion
Homosexuality, ordination of LGBT people (if this wasn't already included under 'Marriage')
Salvation
Eternal punishment/Eternal reward
Five Solae(?)
TULIP(?)
Biblical inerrancy
Prayer, the value of prayer, and whether or not one should only pray to God
Virgin birth
Christian perspectives on Mary
Alcohol
Premarital sex
Pornography

High-Low
Instruments in church(?)
Ritualism
Spiritual gifts
Appropriate church attire

[Mad Deadly Worldwide Communist Gangster Computer God]

How do TULIP, prayer to saints, and the role of Mary fit on the left/right spectrum? If anything shouldn't they be on the high church/low church spectrum?

No.  As Del Tachi said, the low-right spectrum should represent what you believe whereas the high church-low church spectrum should represent how those beliefs are expressed.*  For example, you and Nathan are, I would assume, very similar in terms of church worship and therefore would make good neighbors at the top of the spectrum.  What puts you most at odds are your different approaches to belief.

*In fact, I would probably move "Spiritual gifts" to the left-right spectrum.

[Mad Deadly Worldwide Communist Gangster Computer God]

Err... the Virgin Mary's role in prayer and the church?