Online travel sites?

[Slickone]

Expedia, Orbitz, Travelocity. Which one should I use if prices for my flight are the same? Any one more relieable or have cheaper fees? If they're the same, I'll pick the best flight times.
Flying from BNA (Nashville) to LAS (Vegas). Southwest has the only direct flight and they don't participate in the online sites.

 

[blackdogdeek]

my wife and i usually go with expedia. i feel a little safer with them only because they have the weight of microsoft behind them.

 

[Slickone]

Orbitz is owned by several airlines isn't it?