For me, a few.
I took a 2-semester honors course series called "Drugs, Brain and Behavior" from a prof who studied / taught at Johns Hopkins... brilliant course, very engaging.
Con Law - As basic as it sounded, it was taught by someone who would later become the Chief Justice of the Arizona Supreme Court (and who I would later work for)... Brutally difficult class, in which no one was expected to recieve higher than a C. I pulled an A-.
Technical Writing - My prof really took an interest in much of what I wrote, so much so that had she not been so rough on her grading, I'd have thought she thought I was brilliant.

She really reinforced my belief that being able to communicate effectively in writing is quite possibly the most important skill one can have in the work force.
I never took a Logic or debate course. That said, I struggle with the "academia" of both. Never really saw the appeal to being "technically" proficient in disputing something in a sterile environment, only to go out in "the real world" and find that context and other factors can render those disputes ineffective.