The flanker has quickly settled into life at Sixways and made the number six jersey his own in recent months with a number of eye catching and aggressive displays.
Hill said: "Sam is very combative and that is superb. He is also beginning to develop his attacking game.
"He came here known as a defensive player and he is definitely worth his place in the side at the moment.
"When you pick the team at the moment you put Sam Betty in fairly quickly. That is all credit to him.
"He came here from Cornish Pirates and made that big step up. Now he is competing with the big boys and going very well."