Against ONE of them, I'd probably side with the team, assuming it could work well together. With Thanos as the damage soak, the rest could conceivably muster enough offense to tip the scales.
But it's Skyfathers, so some depends on the writer. If they're in a vindictive mood, all but Thanos could possibly be one-shotted. So there's no certainty here. But as the OP stands, it's hard not to side with the duo.
Skyfathers are only one shotting high Heralds on there low end. On there high end Skyfathers couldn't even 5 shot the Heralds. The problem here is speed and reflexes. Superman and Surfer are too fast here. They see both Odin and Zeus frozen in time. Easily avoiding any attacks, and mounting good ones on there own.