There's an interesting thread going on on chowhound right now with the above title.
http://www.chowhound.com/topics/482786Some of the restaurants that people have mentioned (and not everyone is sticking to a 'top 5' list, nor are they necessarily sticking to the exact borders of JH) are:
Spicy Mina's, Deshi Biryani, Rahjbog, Kebab King, Dosa
El Chivito D'Oro, La Nueva Cafe, Inti Raymi, Urubamba, La Portena, Taqueria Coatzingo, Rincon Criollo, Pio Pio
Arunee, Rice Ave, Chao Thai, Sripraphai, Zabb, Thai Son
Jackson House, Ricky's, Jahn's, Texas Ranger BBQ
Espresso 77, Cannelle, Lety's, La Nueva bakery
Armandos, Sammy's Halal
Any opinions?