If you got hired by either, I think you should be excited. If you got hired by both, well...I actually feel a little sorry for you because you're going to be spending a lot of time wondering wich lottery ticket to cash.
It will probably be years before you figure out if you picked the best one for you.
I wanted to get hired by FedEx. They weren't hiring. Got picked up by SWA and from where I am now I'm very happy. Wouldn't consider leaving. There was a lot I wouldn't have known about the job until I actually did it.
The choice is very personal though. Really depends on where you live and what you value.
And no one knows what the future holds that could turn either of these jobs from gold to crap or vice versa.