It is easier to source good spruce, epoxy and glass than it is to source good okume marine ply.
It is also potentially cheaper if you have good sources.
It might be lighter, if done right.
It might be stiffer if done right.

The downside is that it might be more expensive, heavier and not as stiff is done wrong. For sure it will take you much longer to build in strip than in ply.

We choose strip as we were unable to find good gaboon marine ply without importing it at a horrendous price.