Tico's lectures are rambling but interesting after the first 4 or so weeks once you get a sense of his style. This class is not a must take but is relatively unique, at least from an argumentative standpoint, and is not difficult if you're willing to invest the time into writing the journals.

Professor Braun's Class is not only engaging, but also immensely informative. The books are fun to read and while the only assignment is a journal of your comments from readings, his standards for this are very high and it requires regular work to do well.