All depends on what you are writing really.
One of my templates has
1) One instrument track of Alchemy
2) One instrument track of Zebra2
3) A separate midi and audio track for a V-SynthGT
4) An instrument track for an Access Virus
5) One instrument track for Battery4
6) Several instrument tracks for EWOrchestra
All tracks go to their own bus, every bus has a send to a reverb bus on which is EWSpaces reverb.
Every track and bus has the console emulator with the trim set to 2.
A different template has
1) 4 EWOrchestra instances
2) Several midi tracks feeding the EWOrchestra VSTi's
3) Strings go to a single bus
4) Brass to a single bus
5) Woodwind to a single bus
6) Solo instruments to their own bus
7) Percussion to a single bus with most likely an active compressor on the bus (CA-2A)
Once I have a project written I sometimes delete all of the clips and automation and then save the empty project as 'OrchestralTemplate000.000' for example then use that template again for similar work.