New research points to even greater anti-oxidant powers for flavenol-containing dark-skinned berries such as blue and red blackberries, raspberries, elderberries, and blueberries, with the latter possibly slightly less potent than the former varieties.
The NY Times blog has a round-up.
health berry links as a resource:
elderberries as in 'your mother was a hamster, and your father smelt of..."
chokeberries - the berry with the greatest concentration of antioxidants