What differences between them are you referring to?
The biggest difference (as you pointed out) is support for working. The Novominsker supports Touro in America, while Rav Shteinman would never do the same in EY.
But if you are only discussing “Core Torah Hashkafa”, there isn’t much difference between the Novominsker and Rabbi Hershel Shechter. :0
As a point of comparison, where would you put Pinny Lipshitz and the American Yated?