I would say the exact opposite. The LSATs are totally different than a law school exam. I would say its easier for a Yeshiva guy to do extremely well on the LSAT, get into a top school but then have trouble keeping up with his Harvard, Yale, Princeton educated classmates when it comes to the Final Exam process. As for resume, I think it looks pretty bad, especially at a top school where most of his classmates have: BA, Princeton University, and he has: BTL, Beth Medrash Gevoah. As for interview, I think a yeshiva guy may be able to make up for his weaknesses if he has a really confident personality, dresses well, and could talk the talk and play the game.
I am a BTLer, and i wholeheartedly approve this message except as to the last part, that is fully dependent on a special personality, who would naturally go far anywhere.
i did great on all short answer/multiple choice exams in my life, but pretty bad on my first law school exams (never wrote anything for anyone before law school so im sure my exam responses were in full yeshivishese).
Re URMs, i think that point is silly, as many firms grab them up because its good on their website and clients like it, and to be clear, i know several who are very smart and capable and i love working with them (in fact i dont remember ever working with an incapable one, as opposed to smart-ass whitey's who have gotten their life delivered on a silver platter b/c their dads went to harvard).