A good thing about AA.com is the flexibility of entering city pairs and dates when making reservations--it even allows you to enter incorrect cities/dates! Recently I had to use web sites for BA, KLM, and Middle East Airlines (Air Lebanon), all of which force you to define a country of origin, and then provide a list of departure cities. In the default reservations search, MEA forces you to use an annoying mouse-based method to input your travel dates, rather than letting you type the date in.

So, BA, KLM, and MEA reduce the number of mistakes you can make, but at significant cost to ease of use. Go AA.com!

-Hayden