I'm definitely voting Kurziks. First of all, I believe as CS Lewis did that theism is a necessary and important prerequisite towards monotheism - so a faction that worships one or more gods is in my opinion better than one that worships only strength and power (though those could certainly be considered "gods" in a sense). Second, anyone who studies the Old Testament much will realize that monotheism was a really difficult thing for the Israelites, and there were always segments of Israel (smaller or larger depending on the time) who veered off into worshipping multiple gods. So for us to be worshippers of the one true God in a nation that trends towards worshipping many gods, to me, is a neat parallel to OT times. Third, CGW characterizes the Kurziks as a nation which values gentility as opposed to brute strength - and isn't that more appropriate for us?
Finally, and perhaps most importantly - though Guild Wars IS only a game, I think we send a message to the non-Christian world by deciding one thing or another. A decision to abandon a more peaceful, spiritual faction for one that is more war-like might send the wrong message, especially in a world where many believe we are a country filled with Christian "Crusaders" who seek to enslave the world into a Christian theocracy - and who believe (with much evidence) that evangelism is motivated by a desire to force others to do what we want, rather than an expression of love as we claim. If you don't believe people think that, you really need to turn off Rush Limbaugh or whatever right-wing pep-talk show you listen to and open your eyes to how other countries as well as our own liberal media views us.
With all this said though, if the majority of other Christian guilds go Luxon - to me, that would certainly make a decision much more difficult.
William Paul