DAO is my favorite game of all time. So it is a 10/10.
DA2 is meh to me. 6/10.
As for the DA world in general, it is an okay fantasy world. Not special, not lame, OK.
I am not so much into it for the world lore itself. 7/10.
What I love is the characters, how they interact with me and each other, and what story they have to tell. I absolutely loved the characters in DAO (9/10) yet really disliked pretty much every companion except Varric in DA2 (3.5/10).
I have high hopes that DAI will be at least a 9/10 from what I have seen so far. Hopefully a 10. I tend to favor characters and atmosphere (hence why ME2 is my second favorite Bioware game after DAO) and I must say every single companion seems interesting/appealing in DAI.
So yeah, I am very optimistic DAI is going to bring me much closer to the DAO enjoyment than any other game since 2009.