Maybe Tony fancied Carol because she actually had powers? Her Ultimate counterpart was never a superhero so the 616 version probably seemed more exciting.
Isn't 616 Hank also a wife beater though? That's what prompted their divorce. Even his then-unknown daughter Nadia (who he still doesn't know about as she debuted after he died and he's yet to be resurrected six years later) disowned him when she found out, choosing to take Janet's last name.