Hm. It's a bit hard to attempt to compare the different world of DA to each other. Each story is different and as a result each character is tailored to the story.
If trying to make all of your companions happy and make it seems as if it's possible for everyone in the world to approve every single time of your decisions or responses ...well that's a bit unrealistic. Each character is different and being apart of that is that they will disagree with things you do while others approve. Though I know exactly what you mean ....I hope.
This of course is all my personal opinion. Taste buds may vary.
Origins had very blatant positions when it came to what companions accepted or hated. It is very black and white, there is no gray. There is no reasoning, no compromise, or even the feeling of acceptance of the multitude of views. Morrigan is your most prime example. I feel Bioware was really just stepping into relationships and its affects in this first installment. Also did you ever take the time to really talk to your companions? I literally spent hours just talking in camp to these companions and they reveal a lot of depth, but I still did not like any of them save Zevran and sadly enough ....Sandal.
DAII is akin to Origins. It is at times mostly black and white and companions are insensible beings scripted to react negatively or positively based on their spectrum. Are they sensible? To me, they were dull and basic archetypes. Not extremely so, but just dull and lacking beneath the bar that Origins set. You can literally see it as the middle ground between Origins and Inquisition in terms of characters. More sensible? (more being subjective) Yes.
Inquisition to me personally is much more refined in that there is reason and logic even while there is discordance. It is much more realistic in that as humans we understand why our main character has taken a choice or said something. Companions are accepting your choices or the things you say and they realize that there are much more than just black and white positions, but are humanized by the fact that they can still agree or disagree. Inquisition has some of the best characters I feel. The conversation employ emotion at a vocal and physical level. Of course technology has come far since Origins, but that bit really helps to connect and create depth and also as I said before create a more human conversation and level of understanding with your companions. I feel the banter, the conversations, and the decisions and your companions responses to those things is what Origins attempted to create. Sensibility level? Max. Max for Bioware perhaps.
As for Leliana ...you'll be surprised in Inquisition. For me, it was very pleasant.