Wolverine I'd actually peg him as the exact middle ground of what's been said so far, 8w9. He's not bouncy or reactive enough to be 8w7, but reactive in a more "smoking volcano" sort of way. Definitely core 8 (as aposed to 9) though, because of his tendency to lone wolf (this is often how 8's remain in control of their environments, by standing alone. That said, he actually does often try to run the show with the Xmen team-- remember all of his explosive arguments with Cyclops because he was following his natural instincts to lead? His reaction to Rogue early in the film franchise is such the epitome of 8w9-- "kid, leave me alone." but developing a soft spot for her brokenness anyway. And, seguey...
Rogue She's been a favorite character of mine since I was a little girl, and though I can see the argument for 6w7 in the comics, her character in the film series had a total 4 makeover (which I actually hate. I could go on about it...). I think regardless, an argument could be made for 468 (or 648) depending on which medium she's depicted in. In truth, now that I think about it, I would expect majority of mutants to have a 4 fix (especially those who manifested their mutations earlier in life) because of the obvious "outcast", "you're different" theme and the shame it would bring.
Jean Gray I see the film depiction of her as a 1. She's very justice, "doing good" focused but clearly has some underlying rage issues and (because of her power) is always fighting for control. 1 indeed.