I've fallen in love with Python. Gloriously inefficient but a lot more productive than bumming Assembler on a 1 MHz 8 bit MCU with 32k RAM for everything. But my, it was the definition of elegant when you were done.
Yes, Python is a wonderful language, but I still have a lot more to learn. At work it's mostly SQL and SSIS, with some R, in class it's R, Python, and Linux, and a smattering of specialized tools so far. Class starts up again Thursday and, according to the syllabus we'll be playing with some NOSQL and Hadoop as well. Should be interesting.