I don't really care about airlines, but AA is the only airliner that flies out of the local regional airport (only flies to a bigger airport a few hours away), and I've never had any issues with them.

The worst I've had was having to listen to a flight attendent talk about God because I was on the last row.

We usually fly AA on flights to Europe. We live near KC, so our choices are AA or United (IIRC). And we prefer AA’s time schedule. Outside of major cities there is little choice to many destinations.