What make you choose a particular airline over the others besides the cost?

obviously the services and onboard atmosphere, like seats with leg space and combination of lights.

Choosing a Particular carrier over the others disregarding the cost factor is because of the type of personalized services provided right from Travel reserved right till the destination including Check In, Inflight services  ,  and not to Mw=ention the privileges provided when enrolled in the Airline Frequent Flier program