Kaldur is a surprisingly good character, as is Artemis. (She is rapidly becoming my favorite character, although Zatanna is becoming a contender in just two appearances.) I hate Conner, but I hated his character since his inception; Geoff John's Teen Titans.
Woah woah woah. You need to take that back. I had X-Men books since the Phoenix Saga, and Jean has never been naive, eager to please, and eager to assimilate. Nor has she based her life and personality off of a TV show. Maybe Jean was like that in X-Men Babies (X-Men Evolution), but I know of no version of her character.