I think the 4 elements would be good because it is easier for the devs to implement. The alignments are tougher because there is no evil and because the tendency would be toward good being more desired then the others. I would add the 4 elements (fire, acid(earth), elect, and cold) and 4 random ones that are interesting and easy to implement such as destruction, death, strength and travel. This would actually entice me to make another cleric perhaps .