"I think all of us have had such personal growth," Kim Kardashian told PEOPLE Wednesday at the Pre New Year's Party at Eve Nightclub in Las Vegas.
Though Kardashian herself went through some highs and lows – including breaking up and then reconciling with NFL beau Reggie Bush – she said the most memorable moments of 2009 for her were all about her sisters.
"My highlight was Kourtney having her baby and Khloe getting married. I can't choose. They're both equal," she said. "I think they've both grown up so much.”
Looking ahead to 2010, Kardashian said she hopes to lose those few extra pounds that she put on during the holidays – and to see Bush go to the Super Bowl.
Her main goal for herself, though, is to focus on her career, specifically producing television. "That's something I really want to do next," she said. "I want to be outside my box and try different things."