Mike,
Since the last discussion about which Oboe is used more, i did some thinking, and tried to remember what my colleagues used in years past.
In the 4 professional orchestras i worked in, and forgive me as i'm trying to remember, i think 5 of the players owned both and the other three used 1 Viennese, and 2 French. The option of both instruments was used for different styles of music. Again, as i remember, the french oboe featured in Western European Classical, and Romantic music more often than not, although Beethoven was one composer who 'required' in their opinion the use of Viennese oboe.
Russian, and Eastern European Classical music sounded more authentic with viennese oboe, given the 'folk' origins of much of the music.
As a conductor of a theatre orchestra, my two oboists used one each, and i often swapped them between the first and second parts according to the sound requirement of the style of music. (The king and I sounds much clearer with a viennese oboe! [H] )
I know the general impression is a predominance of French oboe in music today, and that's partly true, although i suspect it's more about general availability of instrument than choice of sound, but the impression of Viennesse oboe being a rare, or out of date instrument, isn't true. I have met the two principal obists from the Russian Phil, and they both use both. (again as i remember.)
I also remember the good natured discussions from the past between W/W players extolling the virtues of one or the other!
If you're writing film music of today, i would suggest, given the origins of that music, based to a large extent on the music of eastern Europe, Scandinavia and Russia, that samples of Viennesse oboe would be an assett, and not something to consider in some way, second best.
Regards,
Alex.