In the newest cartoon series is when he and Wolverine switched bodies.
As for the arch in the comic book, I'm not sure . . .
On another note, decided to change my avi to counter Fusion's
Don't think I saw that episode...
Well, in the Ultimate Spider-Man comics, Jean Grey was hit on by Wolverine and she screwed with him by putting his mind in the last place he wanted to be.
Hence, Wolverine and Spider-Man switch bodies for a day.
You would pick Carnage.