Ok, for anyone who cared I counted: (AKA great way to avoid yard work on father's day )
Superman (AKA, the Man of Steel) is NOT on B&B #28, 29 or 30.
On the cover of JLA #1 Superman and Batman ONLY appear among the tiny pieces on Despero's Chess board, and again #5 as teeny-tiny little figures in the distance, on #10 they both appear as fingers of Felix Faust, #11 their names are on beakers containing imprisoned superheroes, #19 boarding the exiles ship, #21 (JSA app), #25 Supes only, #26 Batman only, #27 Batman only, #28 Superman only, #29 (JSA app), #30 & #31 Batman, #32, 33 & 34 both, #35 Bats, #36 Supes and from about #38 on they appear pretty consistently on the covers
I think that's pretty freakin' incredible. My son says he heard something about the people involved on the actual titles (Batman and Superman) had issue with the characters appearing on the Justice League Of America covers. If that's the case, very interesting politics at play within DC at the time. Anyone know more about this it would be cool to know.