What I tend to consider "good" porn is halfway decent production, safe and responsible responsible companies (I LIKE to see condoms used) and I generally like parodies that are poking fun of themselves as much as the original. I don't like porn that has really crappy production, takes itself too seriously, or portrays humiliating, violent, or other demeaning scenarios. I want the porn I watch to portray consensual fun, since that's what I practice and what I get off on.
ETA: A sense of humor, whether in porn or during sex, is a MUST. Porn is funny. Sex is funny. If you can't laugh at/during sex imo you're probably taking things WAY too seriously and not actually having fun, which is generally (as I see it) the point.
Pan Female, Hinge in a V between my mono (straight) husband, Monochrome and my poly (pan) partner, ThatGuyInBlack