Do you have conversion notes to go from Heroclix to Marvel Heroics ?
I'm always looking for information sources to base datafiles off them, but i'm not that familiar with Heroclix
My notes are pretty much what I typed above.
It's definitely a subjective thing.
The character cards themselves (which have been around since the League of Superheroes starter and Avengers sets) often have great flavor text and power names to use as distinctions and power set flavor.
Going from Heroclix to datafile is likely going to give you less of a generic comic book datafile and more of a snapshot on the character.
I looked at Heroclix powers on the dial and tried to see what that represented...
Regeneration = Stamina
Damage Reduction powers (Impervious, Invulnerability, Toughness) = Durability/Resistence/Invulnerability SFX/Immunity SFX.
Stat numbers on the dial &/or how long a power remains on the dial can be indicators of die rating.
Specialties can be a problem...but throw in a wiki search if you don't already know the character and that can help you out.
Again, this was mostly an exercise in helping potential players that are familiar with Heroclix, but new to MHR, make datafiles off of their favorite Heroclix figures.