A より B のほうが ~
Note: B (the ほうが item) is the one that is "more ~".
The structure より~ほうが is used to make comparisons between two things, stating that one is more of something than the other. The item marked with より is the one being compared against (the lesser), and the item marked with ほうが is the one that is "more" (the greater).
The basic pattern is: A より B のほうが ~ meaning "B is more ~ than A."
When comparing two nouns, use の before ほう.
When comparing actions, verbs appear in their plain (dictionary) form before より and ほうが.
Adjectives can also be used before より to form the basis of comparison.
While the pattern A より B のほうが is the standard order, より and ほうが can also appear in the reverse order (B のほうが A より) without changing the meaning. In fact, this reversed order is very common in natural speech.
To say "A is not as ~ as B," you can negate the sentence.