a sight better, worse, etc.

a (damn) sight better

Quite a lot better (than a different person, thing, or condition). "Damn" is used to emphasize how much better someone or something is. The car should run a damn sight better now that you have the tires aligned properly. So far our new intern has been a sight better than our last one.
See also: better, sight

a (damn) sight worse

Quite a lot worse (than a different person, thing, or condition). "Damn" is used to emphasize how much worse someone or something is. Your car is going to run a damn sight worse if your tires remained improperly aligned. So far our new intern has been a sight worse than our last one.
See also: sight, worse

a (damn, etc.) sight ˈbetter, ˈworse, etc. (than somebody/something)

(informal) a lot better, etc. (than somebody/something): Life would be a sight easier if we had a little more money!A car that big would use a darn sight more petrol than ours.
See also: sight