as you know, i'm not really a cyclops fan, but i really felt like there was about 0 chemistry between jean and cyke in the movie(s). like, if i didn't know better, if i had only seen the movies and knew nothing else, i would assume that jean and cyke were only together because it was convenient - prof x's first students, etc. i really didn't feel the love. i do think it has a lot to do with the casting choice tho. i didn't find jean even particularly *likeable*. i agree with you that catherine disher did a great job at jean's voice on the animated series (i also have a soft spot for her cuz she was in forever knight :)).
as for wolverine running off on his own a lot... i suspect that part of it is because, and this is if i remember it correctly, when the animated series starts, wolvie's been with the xmen for a while. not, like, forever, but long enough. he's established, and tho he still has issues, he's at least relatively comfortable with the group. in the movies, he's new or relatively new. plus, IIRC, once the first movie did well they started making plans for a wolverine movie (interestingly enough, they also have plans for a magneto movie). having him run off at the end of x3 makes it way easier to transition into his own movie.
and a non-undie-related post ;)
as for wolverine running off on his own a lot... i suspect that part of it is because, and this is if i remember it correctly, when the animated series starts, wolvie's been with the xmen for a while. not, like, forever, but long enough. he's established, and tho he still has issues, he's at least relatively comfortable with the group. in the movies, he's new or relatively new. plus, IIRC, once the first movie did well they started making plans for a wolverine movie (interestingly enough, they also have plans for a magneto movie). having him run off at the end of x3 makes it way easier to transition into his own movie.