Barracuda and Avenger as mature wartime strike aircraft

How effective was the Fairey Barracuda compared with the Grumman Avenger later in the war?

The Barracuda became effective after its problems were solved, while the Avenger spent more of the war as an already mature aircraft.

The comparison separates a design's eventual capability from the time required to work through development faults. The Barracuda became an effective carrier strike aircraft once its early problems were corrected. The Avenger entered the comparison as a more mature design and spent more of its wartime service free from those development burdens. Assessing the two therefore depends on whether the question concerns final capability or useful service delivered during the war.