geshmockster: I would definately have to agree, Rabbi Zwiebel is for sure one of the greatest living jews,I have met him and can personally attest to his greatness!
However, there are a few yidden that I am shocked that they wre not mentioned yet. I am taling of the mechanchim of Yeshiva Darchei Torah in Far Rockaway, Rabbi Yaakov Bender Shlita and Rabbi Zvi Trenk shlita are especially notable