My vote is for magpie, all the way. I can't wait to get a magpie blood some day, and I can't wait to make a magpie ball (once we know what's in it ...)
The flatline is awesome, but it's also yellow, and there are a lot of snakes with awesome yellow in them. (Maybe not quite as screaming as the flatline, but still.) The magpie, on the other hand, is a white base color with bold black patterning, which I love.
I really like the mojave GHI as well ... Not as much being done with dark morphs.
Ooh, what was that champagne combo that Sloan Reptiles posted? (I believe a friend of his produced it.) I think it might've been champagne calico something? Only champagne morph I've seen that I really liked ...