sp/soc: The most straightfoward in language, with relatively little trills and embellishments. Points made directly and from personal experience. Business-like. Clear. Cynical. Lacking in internal experience compared to other stackings.
sp/sx: Comes out as somewhat heavy and gloomy, or cool and detached. Often gives out a suffocating and insular vibe, as if their internal world is wrapped around by an impermeable membrane. Strong sensory impressions designed to awake sexuality. Makes one want to linger on one or two lines forever.
soc/sp: Tangential. Lots of details and analysis. Very in-their-head and intellectual, and lacks sensuality. Comes across as level-headed and unspontaneous, but also with personal warmth. Their written works often require a great deal of mental concentration from the readers.
soc/sx: The word "fantastical" comes to mind. Lots of virtuosity and trills, and often removed from the real world. One is whirled away by the dazzling fairies of their colorful imagination. Can be too rich in imagery for their own good. Sustained dramatic power due to their knowledge of interpersonal dynamics.
sx/sp: Intense, often a stab-in-the-chest sensation, leaving me in tears without knowing why. Fantastical but much more concentrated in a few inner images. Can be abstract, animating dead objects into their field of contemplation. Embodiment of another human, thing, or idea is common in their writings.
sx/soc: My impression of their writing is "fire-and-ice", as if one is to experience the extremes of heat and coldness at the same time. Often abstract, spilling one inner vision after another like a dream-sequence. Seems particularly in touch with the core meaning of life and death.