The advantage of the Litvak yeshiva is  authenticity. It is not that Litvaks are very nice or that the Litvak world is so great. It is not that even all the doctrines are right.

Rather it is simply that it is the one address you can go to  to find out what the Torah actually says. Not what people want it to say.

[In fact I had a pretty great experience in both of the Litvak yeshivas [Mir and Shar Yashuv] I attended, but the point I want to bring out here is that one's experience should not make any difference in evaluating the value. The fact in itself that all yeshivas based on the Gra and Rav Shach more or less apply the same principle that says basically that we simply want to learn and understand keep Torah. There is basically no alternative agendas.