To answer this question for Ulfred, I need to give a little background, so bear with me.
It is my (Nigel's, not Ulfred's) belief that man is made in the image of God, and God is a creator. When we create imaginary worlds, we can only do so because we are of this image (J.R.R. Tolkien would tell you the same). As such, while I do believe that a person can imagine a world in which they don't see Jesus Christ, I don't believe that he is really absent from any world anyone imagines. If I didn't believe this, I would have no reason to play RPGs.
You no doubt believe differently, but that is all by the way as far as Ulfred is concerned. He worships Jesus Christ. He worships Jesus because only in Jesus can he find someone who accounts for both the love in the world (it is His love), and the pain in the world (it is our choice, but He chose to suffer it with us on the cross). Ulfred's knowledge of the deeper questions of theology is a little hard to measure, since I am under the impression that there is no such thing as a Bible in Warhammerland, but prayer and the Holy Spirit have done well for those with no other recourse before.
He does not openly dislike other deities, because they are no competition for Jesus in terms of power. He would obviously not want to support a diety who plotted evil.
If this is not sufficient to earn me the XP mentioned, I would be glad to expand upon it, although I acknowledge that it doesn't give much of a handle for the GM as far as plot, as Ulfred wouldn't fall for a GM created "Jesus", knowing the voice of the Real Thing.
I haven't brought this stuff up before, because I didn't think you guys cared about it, but XP are XP, and you did ask.