You don't have to hate Bowser Jr because you like the Koopalings better...
I do like Iggy, Ludwig and Roy a lot as well, but I really like Bowser Jr too.
I really don't like Lemmy's design though... Don't really like his color palette & that ponytail-mohawk combination makes me barf everytime I see him.
Larry and Morton are.. alright. And Wendy is just... Such a Wendy.