I second JSpira's recommendation of BMW of Tenafly. While I've only leased two vehicles there, I have been extremely satisfied both from a sales and service perspective.
(BTW: Jon - I met you there a few months ago when we both had our cars in).
2013 F30 335i xDrive Mineral Grey/Black Leather Premium|Cold|Tech|Driver Assist|HK Sound
2011 E90 328i xDrive Space Grey/Black Leather(Retired)
2009 E90 328i xDrive Monaco Blue/Saddle Brown Leather(Retired)
2007 E90 328i xDrive Graphite/Black Leather (Retired)