I think there is a pattern: the players that like DA:O more and didn't care about DA2 tend to dislike DA:I.
I feel sorry for the OP, but at least he/she expressed his/her dissatisfaction in a polite way.
I guess I am lucky because until now I liked all Dragon Age installments and I hope it keeps that way.
Well I'm an Origins fan boy. I'd go as far as to say it's (in my opinion at least) the best video game ever created to date.
I disliked DA:2 at first, but repeat playthroughs caused me to appreciate it a bit more, so that I ended up having a kind of love/hate relationship with it. liking some aspects, disliking others.
But I was more than happy to give Inquisition a chance, and thus-far my perseverance has paid off.
Like DA:2 there's some aspects of Inquisition that I truly dislike, and other aspects that I love. My first few hours of the game felt like I was constantly fighting against the controls - combat felt like herding cats!
Now I'm used to the interface, and it's starting to feel more fluid and natural. Still LOATHE the eight spell limit on the action bar, and still LOATHE the lack of out of combat health regeneration, still LOATHE the lack of proper party tactics... but I'm finding the story and characters engaging, and the locations within the game are breathtaking. In fact I look forward to getting home from work each evening so that I can play it. If the game had the same mechanics and interface as DA:O I suspect I'd be able to put the two games side-by-side.
Clearly the 'open world-stuffed with minor quests' aspect of the game just isn't your thing. I'd still recommend playing it, and ignoring all the minor stuff, only doing the main storyline. You may discover that the rest of it grows on you after a time.