I agree with D and Oz posts below, although I would add a couple more agencies that I consider to be solid.
ATL is also fortunate to have high quality indies that can be scheduled in the 200-300 range. Vegas, for example, seems to be at least 100 higher across the board for similar quality escorts. I know many will say that these amounts are ridiculous or the girls have GPS syndrome (or PPS syndrome as one senior monger prefers). But it all comes down to one's perception of value and levels of acceptable risk and the value we place on our own time. Yep. There are ripoffs and B&S in any price range, but imo they generally get fewer and fewer as the price goes up.
As an FYI it seems in the last year or so many ATL indy escorts have increased their rates from anywhere between 50 and 150 an hour. I think that type of rate increase is ridiculous and now many of these same ladies are offering specials. Yet agencies seem to have held the line on rates. True, mongers are still shilling out 200-300 for agency girls. But when you consider the splits are typically 60-70 for the lady and 30-40 to the house. The girls many think are way overpriced are not bringing in any more green than many of those quickie BP / UTR gems that we all want to hear about. And we also need to remember differences for the quick vs the hour. Some agencies don't even offer the half.
And to further echo what Oz posted, often one has to go through several BP ladies to find a girl that offers the quality of one of these agency escorts. If I want quick and less expensive, I go to AMPs (big surprise given my handle) When I want a more quality encounter, I prefer the escorts. But don't get me wrong, always interested in hearing about that hidden gem too.
Just my opinon on the subject. Be pretty boring around here without the reports on the hidden gems as well as accepting the merit of some of the higher end ladies as well.