Personally, I would give Divinity II around an 8.5 so far...and that is being generous because I can overlook the technical faults. The core of the game I am in love with, and that is all that matters to me. Reveiwers in the gaming media, however, are not quite so forgiving.
Libertarian is right, though. It does not have the polish or production value of an AAA game like Dragon Age and that is unfortunately why it is not being rated as such. Whether you like one over the other on a personal level is a different matter of course, and is all simply a matter of taste.
While I strongly feel Dragon Age is the better game, it is not taking away any of the enjoyment I am getting from Divinity II and is certainly not worth arguing over. Because I can enjoy both for what they are and leave it at that.
In the end, Divinity II and Dragon Age are both wonderful role playing games, and one should not have to be judged as being better than the other when both are there to be enjoyed for what each brings to the table. Which one is better is in the eye of the beholder anyway, so why even argue about it in the first place?