I agree with your entire post,
LindaL100.
I watched this show mainly for Gina Torres who I've loved since her Alias days. I also agree that I liked Mike early on in the season but he just got annoying for me in the later seasons. Rachel was a character I didn't particularly like from the start and so I'm lukewarm to her. However the constant characters I liked since the start are Harvey, Donna & Louis. I usually don't like inter-office relationships cause I know they just see each other all the time so they like each other but I can't help but ship Darvey. And the fact that they have a lot of history together and known each other for so long gives more depth in the relationship for me. I also really loved the Mike & Harvey dynamic which is also another one that I'll miss on the show. I'm afraid Harvey & Louis will just continue to annoy each other but hopefully they'll be more tolerant of each other.
I've watched KH on Roswell and GA and I think those rumors came around the time she left GA. I think she's a great actress and will be great on the show. If she was difficult to work with, then that's probably an experience for one actor and doesn't apply to all.