The only type of paintings etc that I actually enjoy are those ones which look like photos.
There probably the only type that leave me cold - what is the point, when we have cameras & photocopier?
I quite like things that seem silly, or quirky, or make you go WTF? when you first see them - they encourage you to use your brain & think about your reactions.
I often visit the Gallery of Modern Art in Edinburgh. If there are one or two things that engage me, then I come away happy - I don't expect to admire it all (it may help that galleries are free in Scotland).