I would probably go with the A360x. The single pucks are just more modular, which makes it easier to add or remove pucks. Your preference for panel style versus puck style in regards to mounting might be a consideration (if they are going into a canopy, it probably doesn't matter). 2 AP700 are probably more powerful in par output than the 4 kessil A360x, but if you need additional par, this can easily be solved by adding a 5th kessil A360x in. You might wind up spending a bit more, but if you look at the cost over the life of the lights, the cost of one extra unit is marginal in my opinion. Honestly, though, you should go to a LFS that carries kessils and view the AP700 and the new Kessil A360x. The kessil A360x (the physical light itself) is beautiful and sleek. The light output / color is blended beautifully, shimmer is excellent, and the extra violet channel alone I think makes the units worth purchasing and paying a premium.