You're comparing the DA team to the ME team. The DA team has yet to have big choices from previous games that could potentially affect a future title. The Mass Effect team did, and among many other things they did horribly throughout the course of the series, not acknowledging your major choices (i.e. Udina retconned as ambassador) was something that really shouldn't have happened to a trilogy that was sold as "huge decisions with consequences".
The DA team shines in every place that the ME team does not: Far better dialogue options and control, no auto dialogue. More customization for your character and his/her background. Better combat and rpg mechanics. Better story. More interactions with companions, and better, more natural romances.
I have faith in the DA teams ability to deliver, not so much on the ME team. Furthermore, with the integration of the Dragon Age Keep they seem to be quite serious in delivering a unique experience based on your choices. Every decision you get to make in there will affect DAI or a future title.
I'll agree with you on the auto dialogue, but the rest is defendable.
The two big choices were the bit with the council and the one with the collector base. The council scenes were varied more than enough depending on the members and their feeling towards Shepard change depending on shepard's choice. The game even provides news broadcasts and codex entries that mention the improved Human/Turian relations should you choose to save them. Then in Mass Effect 3 Hacket mentions how the Destiny Ascenion's crew offered to help saying they haven't forgotten how you saved them. The collector base was used the best way it could be in TIM's position and becomes a war asset in the end which is fitting seeing as it was the purposes reason for per serving it in the first place.
As far as the whole Anderson/Udina thing, that adds a sense of realism. Shepard opinion obviously had weight with the council as you can see in the second game, but that doesn't mean things should stay as Shepard says just because Shepard says so. I'd also just like to point out that the DA's team handled Leliana and Anders the same way.
I love the Dragon Age series, but it isn't somehow leagues better than Mass Effect in terms of quality in the RPG elements. The way finer details of the RPG elements in each game are handled is a matter of opinion.