denyd
Emperor
One other thing to consider: How many elite units do you have available to attack with?
If the number is low, then your chances for another GL soon are dim and you might want to save this GL for the FP in Susa. It would also give you a chance to promote a couple more veterans to elites before attacking the final Persian cities.
On the other hand, if you've got a bunch of elites, then use him ASAP (before the next elite attacks if possible). The Great Lighthouse or an Army is an excellent discussion point.
If the number is low, then your chances for another GL soon are dim and you might want to save this GL for the FP in Susa. It would also give you a chance to promote a couple more veterans to elites before attacking the final Persian cities.
On the other hand, if you've got a bunch of elites, then use him ASAP (before the next elite attacks if possible). The Great Lighthouse or an Army is an excellent discussion point.