You guys:

Tentatively, I have chosen American Airlines for the trip. In part, my decision was based on American's announcement that AAdvantage miles no longer expire, even though I NEVER fly AA (Im a CO/NW/KL/AZ/HP kind of guy).

However, for you guys who want me to choose United, dont give up. Being that this ticket is fully refundable, has no advance purchase restrictions, AND is fully endorsable, I can easily change this ticket, even for just one of the segments.

I do have one other question: what are AA's Fokker jets and UA A319/A320's like? And how is the meal service on either carrier on the DCA-ORD route (I will be receiving "breakfast")?

Much thanks.