For small game, the .22 has more thump. I've shot houseflies at 30 yds. with my 95.
Me too, if they aren't flying too fast
22 has more thump for sure on "larger" small game, but .177 is cheaper to shoot and I've killed squirrels and even ground hogs with mine. If I could only have one airgun, it would be a 177, but fortunately I have examples of both.