Who do you think benefited the most from the Krakoa island nation?

Easy answer is probably every dead mutant. Probably every villain too besides Sabretooth.
Storm is queen of a planet.
Sunfire got put on the A-Team.

Who benefited the least?

Xavier and Moira's reputations took a big hit.
Rictor is insufferable. Most of the Excalibur roster went down hill too.
Nature Girl is an obvious one.