Hershey,
Air National is what you make out of it. Eagle is what you make out of it.
There are no doubt pros and cons with both outfits. Some which have been very well highlighted by Pressed_on and by always_inverted. Though I think the Mountain Air comment was a bit OTT...
You can think 'outside the square' at Air National and solve some of the money pitfalls...
Sure you work hard at AN, sometimes the shifts aren't the best.. the callout can be at pretty short notice.. but if you want to go further than the Jetstream, you can at Air National..
Work hard, get noticed.. (and not by being a knob) and yes, if you want to have a shot at the G-IV, Westwind, G200, all you have to do is ask.
Things aren't perfect at Air National, things aren't perfect at Eagle either.