There have always been two basic branches of aesthetics. One defines beauty in terms of our response either to certain sensations or certain formal arrangements of objects that evoke those sensations. For the most part, this has been the prominent strand in Anglo-American aesthetics. Since the 20th century, one outreach of this tradition has been to try to explain the reaction to beauty as a neuronic response and to stop worrying about whether it is communal accept to the extent that it can show a commonality--which there certainly is--to how our brains work. It usually also accepts ground level differences, for instance, that in fact we don't all have exactly equal taste sensations for the same objects evoking them. This branch of aesthetics can be extended into wine criticism I suppose, but it's consequence is that it can't be objective at the most basic level.
The second branch defines beauty as occurring with the adequate embodiment of thought in sensuous presentation. For various reasons, this tradition after Hegel, and even with him, has mostly given up the idea of communal definitions in terms of defining objects and seen aesthetics as a matter of apprehension. There has been, in the work of Arthur Danto in response to postmodern art, been an attempt to turn this tradition back to object definition. But its greatest contemporary inheritance is in various strands of poststructural thinking. There will be a test on Monday morning Otto.