Fight #1: Superman, though he'll be smarting for it.
Fight#2: While speedblitz rules the day, if even one of them (situationally) can "get a hold of him magically", then Supes is in trouble. I'll go with a conceptual 5/10 split, giving Superman the win where speedblitz prevails, and uberstomps for the Team where even a few seconds allow for magic to work something on Superman.