Toni Topaz is a competitive eater.
Toni competes with Jughead at the Riverdale Winter Carnival cupcake-eating contest.  She later helps punish Archie for his "summer dating quota" by ordering a lot of food at Pop's and making him pay for it. She is also a member of The Bettys, making her debut in China when most of The Archies were delayed. 
She is characterized as being romantically attracted to females; this is referenced throughout the series, most prominently when she takes a girl to the Spring Dance as her date in Archie #30. She is also apparently attracted to Sayid Ali , suggesting that she might be bisexual.