Tulane is one of those schools that does way better than its ranking would suggest. Everyone in the south knows that Tulane is a great law school, and lots of people in the northeast have made comments to suggest that they view Tulane very favorably. I've actually asked lawyers about going to Tulane over some higher ranked schools (UNC, Vandy, Notre Dame, maybe George Washington). Apparently, there are lots of attorneys who consider Tulane to be on the same level as all of these schools (with the exception of Vandy, maybe).
Emory grads can do very well in NYC, DC, Philly. Actually, many people regard Emory as a school for kids who do not want to stay in GA and practice. Not entirely true, because nearly half do stay in-state. BUT still.. most of those kids who know they want to stay in Georgia just go to UGA. Several big firms from NYC, DC, Philly, Houston... interview on campus at Emory. Dozens of firms have connections with Emory for off-campus recruiting (on-site at the firm for an interview, or at a recruiting event). Even Skadden shows up at Emory's NYC recruiting forum. As far as I can tell, Emory is well-regarded on the east coast.
My experience is not necessarily the best measure for the following reasons:
I can ask lawyers what they think about schools all day long. As such, the best information that I can offer is regarding how lawyers and law firms view specific schools. The bulk of the firms that I work with are in the eastern half of the country.
When it comes to actually placing people, I'm placing people who generally have 2+ years of experience as an attorney. That gives me some idea of how schools place, but doesn't say anything for how well those schools place their grads straight out of law school... and this is probably the biggest question on most peoples minds.
I only have a year of experience doing this, so I'm not really the best source of info.