Having been replaying BG3 over the past week or two, I'll admit that the companion performances are pretty good. There have been moments I found genuinely compelling. Gale's weave scene wa so good that I felt compelled to romance him, and even the way that developed was quite satisfying in my opinion. But I don't think they're necessarily better than any of WotR's companions. I'm not gonna judge too harshly because we haven't seen the whole of it yet, and it's not fair to judge a finished story against an unfinished one. But I will say that with its voiced sections, WotR also manages to deliver on some really impressive performances in my opinion.
And I fully agree with Ixal that the pacing of the game is off. WotR starts off focused for the first two acts, then it opens up and gives you more freedom in what you do, but even in the first act, though the story is focused, you actually do get a degree of freedom to explore, which is I I suspect what Larian thinks its doing with BG3. Also, something just occured to me as I was writing this actually. If you think about it, WotR actually also has an epic start. You personally are just a wounded nobody, but you see a demon lord behead a silver dragon and witness a demonic invasion within the first thirty minutes. But I have never seen anyone accuse WotR of feeling too epic off the bat. Why do people think that might be the case? I actually don't have a good theory there.