Most boring class: Bio stats. I think my eyes were closed more than they were open. Still ended up with a 99% though, so I'm not complaining. And no, I'm not a stats expert, I suck at math, the professor was just THAT easy.
Most Difficult class: Calc. ^^, I really am bad at math, which I found out from this class. My school had a calc class for science majors, and then a seperate class for math/physics/engineering majors. For some odd reason, when it came time to sign up for classes, I thought it would be a good idea to sign up for the latter, to "learn more". God damn was I wrong. Average GPA given: 1.7. I walked out with a C+ and felt like I just climbed Everest.