Actually, I have respect for Elfman as a composer. His Herrmannian influences are there to be discerned, but no more than in other first rate film composers (ex. Goldenthal), and not to any degree that they compete with his own style and voice - a Herrmann with humour perhaps. I should say voices, actually. From [i]Beetlejuice[/I] to [i]Edward Scissorhands[/i], but then to [i]Good Will Hunting[/I] and [i]Big Fish[/i], and [i]Midnight Run[/I] and [i]Dolores Claiborne[/i][i][/I] in between. The man has range, he is seldom boring, so many of his themes somehow stick to your head it cannot be a coincidence ([i]The Simpsons, Men in Black, Batman, Willie Wonka and the Chocolate Factory, The Nightmare Before Christmas, Scrooged, [/i]the above and many others).
Although an A-lister Hollywood composer told me that "Danny gets a lot of help" - which I believe, for you cannot get to where he is from Boingo-Boingo without it - I know enough music myself to recognise a genuine composer with his own ideas (i.e. one that doesn't need layered "inspiration" patches from today's libraries) when I hear him. One of the ways you can 'tell' it's a Composer you're listening to is that his music flows (without ostinati). The ideas and moments follow one another naturally, effortlessly, Williams-like, Herrmann-like. And since I mentioned him, it takes a Composer to become an influence to Williams, and Harry Potter series would have sounded very different if Elfman did not exist.
I don't know whether you have seen this film, but if you had to score [i]Good Will Hunting[/i] - and I am not privy to the director's brief - how would you go about it? How do you score for a supernatural genius character? Left to my own devices, I would probably create a massive fugal construct, at least for the appropriate moments, reflecting the intricacies of the depicted massive, manifold brain. Elfman takes a very different, minimal approach, throwing some Irish elements into his mix too (I think), but listen to what he does at the moment of recognition of Hunting's genius by the faculty (thereby confirming this attribute for us). He hangs that confusion dissonance in the air while the professor and his lackey are trying to wrap their brains around the mystery mathematician being a janitor. Hear how beautifully Elfman resolves -or blends- this dissonance to the tutti as the film cuts to Hunting on the bus. That is the moment where the brain is scored for the first time in "full glory". You may think it was understated, but that was the litmus test for me and I think it took genuine musical sensitivity. It's different to what he is usually associated with, which is good too, a lot of the time. Finally, I got a CD with his violin concerto. Not too impressed. I liked the piano quartet enough though...
P.S.: I admit I have no idea how he's scoring these days. You can tell my examples are all from the distant past...