I am not registered to any party the last time I checked. As a Christian, I don't feel I should affiliate myself to anything but God's party. I am no theocrat, but I do serve a King.
That being said, I do find myself consistently voting for one party over another. (Although I have voted Dem in the past, the Pubs do grab my vote probably 80-85% of the time.) After a lot of thought I think I have the words to defend my reasons for voting this way so consistently.
The number one reason I vote this way is I believe in wedge issues. Both parties seem to agree on so much, but there are a couple issues which are clear cut.
For example, although Democrats are commonly pointed to as the party which 'cares for the poor' I personally do not know one Republican who says they think we shouldn't care for the poor, they just disagree on the means, not the ends. Both parties believe the poor should be taken care of, but one party believes this should be done by bigger government, while the other believes people should have the opportunity to do so as private citizens. The disagreement is in the how, not the what.
This seems to be the case for many issues. Poverty, economics, defense, foreign policy, crime, and on and on seems to be issues along this line. There is agreement about what needs to be done, but not how to do it. Because of this, on these issues, at least both sides are trying for the same goal, and even if I don't agree with their idea of how the things should be run I can still be confident they will try and not take the issue lightly.
However, wedge issues cannot fall into this category. These are issues such as abortion, embryonic stem cell research, and so on. In cases like these the disagreements is not only on the means, but also the ends! Democrats consistently posit for the "right for a woman to choose" while Republicans as a party consistently denounce abortion. There is disagreement on the what, as well as the how!
Because of this I cannot in good conscience vote for many Dems. Instead I will use the clear cut issues to determine my vote.
This election my vote goes for McCain-Palin.