Of course, the end result may be that US Airlines prefer Airbus jets since they are subsidized by the participating EU members.
		
		
	 
I'm not really sure I understand your arguement. Plus, this has been in the news, too (Airbus vs Boeing, Part 8352):
From FlightInternational:
 
Airbus bemoans delay to WTO ruling on Boeing subsidies 
  Notification of a delay to a World Trade Organisation ruling on subsidies to 
Boeing has drawn complaint from 
Airbus on the same day that corporate partner 
EADS North America submitted an 8,000-page proposal for the US Air Force tanker contract.
 Chief executive Tom Enders says he is "surprised and disappointed by  the last minute announcement", which postpones the ruling by two months,  to mid-September. Nonetheless, he is claiming a vindication of Airbus's  argument that "the complexity, inter-connectedness and industrial  significance of the Boeing and Airbus cases would strain the  capabilities of the WTO".
 Last week, the WTO issued its final report on subsidies to Airbus. It  ruled that a series of loans to the European airframer over the years -  including reimbursable launch aid for the 
A380  and other infrastructure grants - broke international trade rules, but  did not establish that the funding caused "injury" to the US aerospace  industry.
 Boeing's supporters in the US Congress have seized on the WTO ruling  against Airbus to call on the Department of Defense to account for any  perceived cost advantages in the EADS bid for the KC-X contract.
 The USA initiated the case on Airbus subsidies in 2004, following its  withdrawal from a bilateral agreement on trade in large civil aircraft.  Europe then filed a counter case, claiming that US federal research and  technology grants and funds from individual states represented illegal  subsidies.
 "Since these cases were filed, the world has changed," argues Enders.  "In aviation, the previous duopoly marketplace is increasingly being  populated by government-sponsored players, leaving Boeing and Airbus as  those that, by any objective measure, benefit least from government  support."
 He expects the panel investigating Boeing funding to find that the  airframer has "received billions of dollars in WTO illegal subsidies"  and to uphold his assertion that the 
Boeing 787 "would not exist without government subsidies".
 That view is echoed by Airbus North America chairman Allan McArtor,  who describes Boeing's newest type as "the most highly subsidised  aircraft in aircraft history."
 On the delay to the WTO ruling, McArtor comments, "I think it smells  like last week's fish," but adds: "I'm not saying WTO is at fault. The  process somehow has gotten off track from where it was supposed to be."
 Airbus has repeatedly asserted that the conflict can only be resolved through transatlantic negotiations. 
 "When the two WTO reports are published, those nations whose  industries are building the aviation technologies of tomorrow can  consider the WTO's views on the past to craft new market rules that  efficiently guarantee fair trade, a level playing field and continuous  technology investment," says Enders.