Welcome.
I run 13/51 for singletrack and enduro, if its "just" dirt, a bit higher ala 13/49 wouldnt be too bad of an option.
I use 14/49 for dualsport (same as 13/46), so thats what's on there 90% of the time. It doesnt most things pretty well.
Note: Rear tire height also affects gearing.