As to Steinman, there was also Barry Manilow's "Read 'em and Weep", which spent more weeks at #1 on the AC charts than any of his other stuff, but you never hear it at all now. Also, I cannot remember where, but somebody posted something like they'd LOL at the thought of Air Supply "making all the stadiums rock"!
I remember "Read 'em and Weep," but I was not aware that that was a Steinman production. I may need to go back and listen to that one again.
But from the very first time I heard "It's All Coming Back to Me Now," I knew that that HAD to be a Steinman production!
In a similar vein, nearly everything produced by Phil Spector had that "wall of sound" feel to it.