Embraer E190, which JetBlue flies and hates: $46 million
Boeing 737-700: $80.6 million
Airbus A320: $94 million (and remember, the WTO thinks they owe Boeing $22b for unlawful trade practices)
Bombardier CS100: $79 million
Boeing sold United 25 737s for $22m and they're salty that Bombardier sold Delta 125 CS100s for $16m, which Boeing alleges cost at least $33m to build.