it isn't irrelevant, it's just that neither of these guys will fight like Superman.... they are both far superior to him in terms of H2H skill....observing supes only gives Bats a slight advantage that will be overcome with Cap's practical experience with the extra week...... he'll use Thor to test the limits of his strength and invulnerability...... Bat's may be good with prep time but no-one does super-fight training like Captain America