There is no one Rav for everyone, just as there is no one Shul for everyone.
The reason I mentioned that the Rav may not be in Eretz Yisroel is that I have many friends who have made Aliya over the years and one thing they complain about is that it’s hard to find a Rav in Israel like you have in America. In Israel, they say, you have a Rav who answers “Shailos”, but not the personal type of Rav who is part of your family’s life in every way. If I’m wrong, I’m sure you’ll let me know.
So actually, while I’m not advising anyone to leave Eretz Yisroel, but if someone’s Yiddishkeit can be more fulfilled outside, in galus, because that is where his Rav is located; then that’s where he should be.
Aseh Lecha Rav mandates that you have the confidence in your Rav, in Das Torah, to follow him unconditionally.