Good luck with finding anything positive about Gwen. I know I never have in the screen version, though there are some fan writers who can make her more likeable.

I agree about the greater chemistry between Martha and Jack, but at the same time I doubt that either would even consider sleeping together because of what it might do to their friendship. If Jack had ever given Gwen a sign, she would have dumped Rhys and everything in her life to be with him. They would never have worked as a couple though because Gwen had no respect for Jack, she just lusted after the perfect hero she thought he was.

I loved that Martha shipped Jack and Ianto. It made me love her even more.