How long have you had Champ? I'm sure it's not that he doesn't like you
My Cooper always will go to the people who ignore him. If they try to get his attention it seems to irritate him. You might try ignoring him yourself
I am sure this is very frustrating for you, I can't imagine, Cooper is a real "mama's boy". My girl, Carley is a real "daddy's girl" too, but she does give me attention, just not as much as she does him. Although this weekend we had lots of thunder and she was really afraid and it was "mommy" she ran to.
Does he have special treats he does like? Maybe you should be the only one who gives him the "special" treats. Good luck!
Also, Cooper is not the most affectionate dog...he just has his "moments"...like when he first wakes up. He likes to lay beside me, but not necessarily on me. Perhaps Champ is like this...is he more affectionate with you a certain times?