So when I found The Below and saw that it had Sir Colin Davis, I knew there could be no contest. Sir Colin, while not as entertaining as some other conductors that have been featured in this series, is a British knight: automatic win. Besides, although he is not mad himself, he gets to conduct two mad Russians here. Those faces! Not to mention the violist's hair ...
Movement 1, part 1:
Movement 1, part 2:
N.B. The other two movements are also right there on YouTube. Enjoy!