Gothic 3, from the makers of Risen, was my very first RPG. So, you can say it was my first love in games (yes, in spite of the bugs). Now there are many types of RPGs that I have played since then. But when I started Divinity II, it was amazing how much it reminded me of my long times playing Gothic 3- in a good way.
And though Risen is from the same makers, it somehow did not / could not capture the same environment and ambiance as it was in Gothic 3. So, I become more nostalgic with Divinity II.
Now it is very tough for me to decide which game I like more. Both are very good examples of the action-RPG genre, both are unique in their own way, with lots of materials, immersion. depth and shine. Lets just say that both Risen and Divinity II, are among the best games I have played yet.
Now hurry up. We want a Divinity III just as good.