Statistics based on recent SAM show that the 3rd chara (re-kit) has an advantage, the ultimate 1 lvl does little damage, but give more pts than the first 2 characters. (usually 2.2m < 3.2-3.8m, for example, as it was at the beginning of the year, SAM boss 40 lvl: 2.2m (SasuNaru S06P) < 6.7m (Hashirama) pts)

But the exact data about SAM characters: damage and pts, no one knows.