Hi John, This is a really interesting question. I recently put together a proposal for my dissertation on The Discourse on Ideologies of the Aesthetic in Abstract Expressionism.  I posed the question  'If the experience of Abstract Expressionism is a subjective one, how can a universal value system be applied, and on what objective theory is this based'.  I looked at how values are attached by a non relational value system, based in classical painting, and whether value can be applied in systematic surveys of Fine Art.I decided to look at Meta Aesthetics, as proposed in Kants Critique of Judgement, and also Bolzano's Theory of Fine Arts, and  Landeu' Reading Abstract Expressionism, Context and Critique. I am a combined honours student, Fine Art and Philosophy, and so far have not been able to source any satisfying, or valid, theories on this subject. Who decides where the value lies, and are there really any universal theories that may be applied. Can philosophers answer the question which has stumped the Critical Art Theorists for so long? I do hope so.