i feel that kate, more so than jon has the future of the kids in mind.
i base this opinion off the fact that jon ended their show which was a fabulous income and really securing the futures of all the 8 children, and their college education.(instead of just leaving, he had to pull out playground fighting skills and yell "if i can't have it no one can" to his lawyer)
jon likes being in the spotlight and jetsetting around the globe with his girlfriends, and the kids get left behind.
jon hired a "baby sitter" to make out with, instead of watching the kids.
jon "grounded" mady and cara for saying they liked what kate does with them more than what jon does, instead of trying to fix the problem.
jon wanted to go do a pub. stunt and sell lemonade for firemen, even though jon has a habit of spending more than 50k every day, he didn't need to raise money, he could've donated five or ten times what he raised out of his own pocket. he just wanted his picture taken.
yes, kate has her faults,but i feel that she is definitely out of the 'me-me-me' stage, and acting like a mother, where as jon is acting like an unruly teenager.