I loved Lorna in New X-Men in the Genosha part.
I really liked it as well, it was one of Morrison's best IMHO.

Didn't care much for Annie hating Lorna.
Chuck Austen admitted in an interview he created the love triangle based on a past relationship he had. Annie was based on his wife, Lorna played the role of a crazy girlfriend he had that would fight with his wife and Havok was supposed to be Austen himself.