Hell, I hated DA1, and you tell me DA2 was worse?
Since they are nothing alike, that would depend on why you disliked the original.
I also loved DA:O.
Its hard to pin down why I disliked it down to one thing, but the entire experience seemed bad to me. Combat was the majority of the gameplay, and it was boring. I felt like they knew that the combat was generic and bland, so they tried their hardest to make the best darn story they could, even if the story turned out to be... generic and bland.
I mean, there were little things I thought were neat and have become accustomed to seeing in bioware titles, mostly related to character development. I liked how integral characters were more then just meatshields. I liked the story behind Alistar, Morrigan, etc. But it was just a cherry on top of a bad game, in my opinion. Gameplay was shallow and linear, fighting was boring, and the story was generic fantasy nonsense.
Maybe it's just not my type of game, but when I pick up a Bioware title, I know I am getting it for the story and not the game. Not a single recent game of theirs has had interesting fighting mechanics or groundbreaking gameplay. Its just...
bad. They are usually good at telling an exciting story, but DA has no exciting story. So... I'm not sure what I paid money for. Boring gameplay on top of a generic story.... eh.
I cant tell which I disliked more, ME1 or DA:O. They are both worshiped as amazing games, but I just dont see it. I beat both just because I wanted to see the goddamn endings, but the entire way through I was thinking "Everything but the cutscenes are terrible."