HIRO is the reall HERO of the show so far.
Next closest comes the Painter who sees/Paints the future while 'high'.

Regeneration Girl needs to embrace her powers.
The Nurse guy seems to mimic other's powers instead of himself having powers. His brother is the real flyier, i believe.
Mirror Girl is getting boring actually. Lets have more episdoes of her with her cloths on ok guys...

Hiro is the breakout character so far.

[spoiler]
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When Hiro appears to the Nurse guy from the Future was cool. Carring a Katana wasn't he ? Awesome glimse of the future.
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[/spoiler]

"i'm a Big Fluffy Puppydog, with bad teeth" - spike