Bull. I know it's Volourn but... still.
Now I liked Dragon Age: Origins. It has a richer combat system than the Infinity Engine games, I'll grant you that. But that's it.
But...
There are more spells, magic items, unique artefacts, monster types, potions, class combos and stuff in the IE games, especially the BG trilogy. Look at the historic playthrough threads for the IE games and see the numerous different ways of solving key encounters versus the more limited (Bio would say 'focussed') Dragon Age rules (which are quite opaque and tough to understand, from the people who mock 'THACO') and character options.
Period.