During my 3 year fleet tour, I got an average of about 12-14 hours a month. Some months were 2-3 times that on deployment or contingency, others were only 5 hours or so. One of the reasons I'm looking at getting out and going to a guard or reserve position is that I can get almost the same hours flying guard or reserve in 4-6 days per month as I was getting AD, and not have to put up with the 14 hours of crap the rest of the month that we had to do. Guard/reserve seems like the best of both worlds, you get to fly the same amount, no BS to put up with, and you still get the chance to deploy if that's your thing.
Of course the grass is always greener on the other side...