My Rav would never put himself on the same footing as Rabbi Kanievsky for example who is known to have much more knowledge of Torah than the typical learned Rav.
Notice you said rav kanievsky however any Lubavitcher feels they are on the same footing as R Shach ztl, so much so that you will not find an Avi Ezri in any Chabad House and if he is mentioned (he is a tzaddik, he might have a different opinion than you) he will be cursed out (I personally saw a Lubavitcher stick up his middle finger when R shach’s name was mentioned so I know first hand)