"Bloody" is more common as an adjective (in both UK and U.S.), while "bloodied" often takes the verb form...in this case past perfect continuous tense, as in a kitchen table that had been bloodied. Based on your example sentence and stated interest in description, my vote is for "bloody." Even if your audience is culturally habituated to the British colloquialism (which is technically not a curse word but an adverb/intensifier), I doubt there would be much confusion when reading the term in context. Bloody up that text then! Once it's been bloodied there's not much you can do anyway.