My favorite courses have been:

CS 371R Information Retrieval and Web Search (Mooney)
CS 314 Data Structures (Scott)
CS 371P Object-Oriented Programming (Downing)
CS 375 Compilers (Novak)
CS 363D Intro to Data Mining (Beasley)

Student picks:

Student 7
Student 13
Student 21
Student 28
Student 32