I can't decide. He's obviously a hugely talented musician with a great ear for arrangements. His music -the little of it I've heard - seems to cover a huge range stylistically. His composed music is apparently good enough to be taken seriously by Pierre Boulez, which is quite an achievement. On the other hand, his sense of humour is sophomoric and often unpleasant, his vocals can be annoying and he seems to rely almost entirely on irony and pastiche, which I find off-putting. Zappa fans - try to convert me. What's he best at in your opinion, and what is his best work?