In terms of my usage of the term “mainstream Yeshivish Gedolim”, I used that term for lack of a better term. I certainly did not mean “Yeshivish” as opposed to “Chassidish”. I do not really want to get into a discussion regarding “who’s a Gadol”.
Amongst other things, I am not qualified for such a discussion, and I do not think this is the place for such a discussion. I think it is safe to say that I am referring to those Gedolim who are considered to be Gedolim and whose views are accepted by a large percentage of Talmidei Chachamim.