Sentence:  The backbend is of extreme importance to any form of free gymnastics , and , as with all acrobatics , the sooner begun the <WSD>better</WSD> the results . 
Meaning of the word marked with <WSD> tags:  (comparative of `good') superior to another (of the same class or set or kind) in excellence or quality or desirability or suitability; more highly skilled than another