I think it depends what the chatty is for. The good dialogue writers contain a lot of their character development and a lot of their voice in it. I'd rather read a chatty scene that gives information, especially with a sprinkling of humour or conflict or pathos, that read a scene of internal exposition which I have limited tolerance of. I think, for me, Sanderson's balance of the two was about right - I certainly found the story rocketing along nicely. I wonder - forgive me for being rude - if Teresa's feedback on your own dialogue has left you overtly sensitive to it in others' writing? I know I'm much less tolerant of lack of description now having been pulled up on it so many times!EDIT: I used to be very chatty in my own writing. Teresa kicked that out of me. Now I tend to shrink at any suggestion of chattiness.
It's a niggle, though, and just something I notice from the writing side.
I'll save the spoiler until after I've finished.
Elantris had some points in it's favor such as the contrast between the dual religions with the same root that reminds the reader of religious tensions in the real world. I thought that was kind of unique and interesting. But Warbreaker really did not do anything at all for me. It had a very plastic, contrived feel to it. I could not connect with the characters at all, especially Lightbringer, whom other readers seemed to like so much. So these warm up books so far have not given me the best overall impression of the author. But I may try some of his other works later.Well,
He wrote Elantris to be an introduction to himself and his work. He speaks quite often about the investment readers make in authors, and that he didn't want to ask anyone to commit to reading a series before trying a standalone book.
However, he has come a long way since writing Elantris. You can try some of his YA work in, 'The Rithmatist,' or, 'Steelheart.' If you're looking for a short piece, 'The Emperor's Soul,' is a good one.
But, if I had to pick which of his books I'd read first, had I never read any of his work, I'd pick, 'Warbreaker.' It's a great standalone piece, a wonderful read, and a gentle introductions (he writes heavy tomes!) to Sanderson's work.