http://en.wikipedia.org/wiki/FriedaFrieda has Body Power: naturally curly hair (pictured below).
The Peanuts have a very new/old X-Men/Titans feel to them.
Some of the earliest characters from the 1950s strip (and 1960s TV specials) included Patty, Violet, Shermy, and Frieda.
Those characters stop appearing in the specials and marketing materials--and were all-but written out of the comic strip--after the all-new, all-different introductions of Peppermint Patty (no connection to the original Patty), Marcie, Franklin, Woodstock, and Charlie Brown's recurring crush on the little red head girl (no connection to Frieda).
Peppermint Patty has Low Self-Control: involuntarily falls asleep in class.
Marcie has Heightened Intelligence.
Franklin does not speak in his 1970s TV appearances, but he does not have the weakness mute, since he speaks as well as anyone else in the comic strip.
The red haired girl whom Charlie Brown fancies has Heightened Charisma.