Yeah I agree about the diversity part though it was hit or miss. For me I liked the internal struggles faced by the main characters and how they grow over the course of the series. I know RJ is not the first to write such a progression but it is so satisfying for me to read idk why lol.
Tbh I feel Rand is one of the most fleshed out characters in fantasy lol. I guess his arc is not concentrated in one particular book like
spoiler
___Perrin in CoT but spans over the entire series. I also feel his struggle with being the Dragon Reborn is also well shown throughout the books. Its subtle but I feel its there. Its things like these where I think a reread will really show the subtleties missed the first time around:::