[all] Is Annabeth really even smart?

I've been thinking about it recently but I feel like with Annabeth people keep saying how smart she is but it's never shown. I feel like she has average intelligence and when she says something "smart" it's actually something reasonable but for some reason all the other characters are unable to do the same. I'm not sure how on the Argo ship Annabeth was elected strategist when Leo was literally there.

Basically it's not that Annabeth is smart but that everyone else is dumbed down.