Opposite way round, see; http://www.reasonexperts.com/images/orchestra2.jpg For pop/ballad though you might have less players in each section, so they’d be a bit closer together. Depends what samples/patch you’re using, probably be best to sustain some chords in a pad way if you’re using the halion sonic patches.
This is one of the best scored piano + strings that I’ve heard. It features double bass, but if there electric/acoustic bass guitar then the double bass would be omitted. I think it’s a good guide for what kinds of pitches/range/distance between intervals within the strings to use. Hope it helps!