Umm.. it's all a matter of preference, isn't it? At the risk of being set upon by an exceedingly peeved mob, I must admit that I absolutely adore the usage of third person. Not as a 'in every sentence' thing (I'm not using it here, am I?), but it can be a huge turn-on for me to have to call myself "this horny slut" or "your slave" or the like in appropriate situations. Definitely adds to the humiliation and 'atmosphere'. Of course, that's just me