Sounds like a fascinating combination, sandik. I am imagining two orchestras on opposite sides of the stage. The Apollo orchestra is in tails; the Carmina Burana orchestra looks like it just got home from an all-night party. They duel. The Apollo orchestra seems about to be overwhelmed, but is victorious in the end, when the Carmina Burana orchestra stops playing and just listens all the way through the apotheosis music.
Generally it's whatever I've seen recently, so right now it's Apollo and Carmina Burana. The tricky part is when I start to put them together...
Agree with Makarova Fan as to the Adagio from Spartacus; it's very hard to keep from humming along with that.
Also want to add the Hungarian variation (with the balalaika) from Raymonda.