Here's a Galaxy S10 Snapdragon vs Exynos battery life comparison. Which model are you placing your bets on?
Here's Samsung Galaxy S9 Snapdragon 845 Vs Galaxy S9 Exynos 9810 head-to-head performance comparison to see which one is faster than the other.
Here's a video showing Samsung Galaxy S7 with Snapdragon 820 vs Galaxy S7 with Exynos 8890 going head-to-head in a speed comparison test.