I believe AN has the most transparent crossover components (which are available for DIY), seasoning-to-taste not withstanding...no way a company like ATC which mass produces parts is going to have something better. If you've ever done xover or internal cabling mods, you know that drivers of every brand don't come close to unleashing their potential. I mean, having the crossovers in the cabinets alone is a huge bottleneck, if you’ve heard the before and after with something like that.
But yeah, I am very curious about the drivers with these two brands..