Rule 4. Never use ‘more or most’ with adjectives that give absolute sense. example:
Incorrect – This track is more parallel to that one
Correct – This track is parallel and the other is not.
Rule 5. There are a few adjectives that are accompanied by ‘to’, like, senior, junior, superior, inferior, preferable,  prefer, elder. Do not use ‘than’ with these adjectives. examples:
Incorrect: I am elder than her.
Correct: I am elder to her.
Incorrect – This car brand is superior than that.
Correct – This card brand is superior to that.