YOU"RE NOT QUALIFIED
[Thank you "anonymous" for today's post. To all readers - please comment on any topic, your comment might be tomorrow's post - KollelVeib]
Just because in your opinion a gadol doesn't meet up to the standards of Rav Moshe does not mean that he is not a gadol. Rav Moshe was the gadol hador, but that does not mean that there weren't other gedolim! So comparing one gadol with the next is only foolish because most of us wouldn't be able to determine who is greater in torah knowledge.
For example, if I were to ask you to determine the greatness of two mathematicians you would be unqualified because of your lack of math knowledge. The same applies to torah, the average person is unqualified to determine the greatness of talmedei chachamim because of lack of knowledge.