Dragon Age Origins is a tactical RPG like say Temple of Elemental Evil. Divinity 2 is closer to Diablo, though from a much different perspective.
As for how it compares to other recent third-person action RPGs, well... it's much better than Arcania, which is a piece of crap. Not sure whether it is better than Risen or not, that's a close call and Risen is a bit more polished (on PC anyway). If you want to go as far back as Oblivion then Divinity 2 suffers from not being as slick and mainstream, but at the same time it offers much deeper quests and RPG systems, which is what I care most about.
It's a great game though, very glad I bought it.
