The advantage a stealth fighter such as the F-22 or F-35 has against non-stealthy fighters such as the J-10 and JF-17 really is difficult to overstate with k/d ratios in exercises being roughly 15:1[1]. Being extremely difficult to detect while also being outfitted with very high end sensors makes it almost certain that F-22s and F-35s are able to engage enemies on their own terms. A better comparison would be with China's new stealthy J-20s but we really don't have any concrete information about how good their stealth really is so it's hard to even speculate.

[1]https://breakingdefense.com/2019/03/red-flag-2019-first-grea...