Hmmm... hard to say. It all depends on the mood. In one mood I may dislike drawing something; but when the mood will change, I will like it again.
Maybe, the most controversial things for me are backgrounds, devices, actions poses and feet. In sense, I switch between liking and hating drawing them in the most strong degree. And yes, in average I more dislike them, than like.
Well, at least, this dude draws better than me
Btw, I was always curious, how is it possible to find "the worst artist" or "the worst comics". It's all super-subjective.