Join Date: Aug 2002
Location: WAS/TYO
Programs: UA 1K, AA EXP (3MM), DL PM, BONVOY TITANIUM, HYATT GLOBALIST, HILTON DIAMOND, IHG DIAMOND AMB, et al
Posts: 6,234
JFK exactly for the reasons outlined by VFR above. Also, if your connection ends up being tight, you'll likely have access to the ExpressConnect services at JFK that won't be an option in BOS.
-FlyerBeek