Big 2h Axe is good for chopping multiple trees at once because it has no multi target penalty and higher range. So naturally it's also good to kill groups of enemies faster.
The fast stun move could also be good vs wolves.

Spear is really bad indeed.
The only thing spear does somewhat well is chasing deer, because you can throw and pick up the spear again on the run unlike the bow that you need to draw.