I must say that I enjoyed episode three a lot more than I did the other two (although I did like the Elrond/Durin scenes).
I loved the look of Númenor, although it did feel too grand to me. There seemed to be a clash between the grandeur of the wide shots of the overall city, and then the scenes at street level.
I'm reserving judgement over Pharazon and Tar-Míriel until we've seen more of them.
Elendil I really liked and am looking forward to seeing more of him.
I do like Galadriel, although the actress is rather short! She does have a Noldor aura about her, though. So far I like what they're doing with her character. One thing that has been pointed out to me that I agree with is that her reason for wanting Sauron is revenge for her brother (one presumes Finrod), rather than anything to do with the Silmarils, which doesn't sit particularly well with me.
I'm not sure what to make of Halbrand. I can't work out if he is going towards being an Aragorn-esque figure (he seems a bit rogue-ish for that) or more of a Boromir - doomed by his desire to do good. At the moment, he doesn't seem to be an inherently bad guy, but if he is going to end up being a Nazgûl, his destiny takes a big turn, presumably goaded on by Galadriel to take power, whereas at the moment he just wants a quiet life.
The Harfoots I'm really not gelling with at the moment, and as others have said, the whole idea that if anyone gets remotely injured, they get left behind seems rather harsh. I'm not finding them particularly sympathetic, even Nori is rather annoying, and their storyline is moving along incredibly slowly. In this episode, it's a while before they appear, and I must say, I wasn't missing them!
As for The Stranger, which I see no-one else has mentioned, I really don't like him. I get the horrid feeling that he's going to be Gandalf/Olórin and I really don't want him to be, because what's the point, aside from shoe-horning in someone from the previous films. Also, I don't like the idea of Olórin killing fireflies, even accidentally. Plus, he shouldn't be there anyway, timeline-wise.
I do really like the Arondir storyline and I'm looking forward to seeing more of him and the mysterious Adar, although I'm a bit disappointed to see that he's not going to be Annatar/Sauron. Still, I suppose it keeps us guessing.