I must say that Carrownah's Preset for her character Carrow has been the by far best preset I have seen in game wise and out of game wise. I prefer the depth of her markings and detail -- it looks so realistic which I admire, I'm not too big a fan of moving presets, so hers has appealed to me the most.
Secondly would be Sir, Vespian's preset. The colorings, and detail in it are so amazing, I could stare at it all day long to be quite honest. I don't think I could grow old of looking at that particular preset.