As the category continues to grow, I've noticed that the ATL 320 trips have gotten progressively worse as far as multi-leg days are concerned. When I first came to the fleet, there seemed to have been more 1-2 leg day rotations. Now we seem to be doing more MD/717 flying with much more 3 and 4 leg days. The other drawback is the inevitable Caribbean/Mex penalty lap on the last day on many of the rotations. That said, the jet is comfortable. But in my opinion, ATL has the worst trip mix when it comes to the Bus.