For me the KPA was the winner. I am not a great tweaker by any means, nor do I enjoy it. I like to plug into an amp, twist a few knobs, and play. Either I dig it or I don't. With the KPA - if I don't dig it, it's no big deal. Next profile please. The AXE is much more about editing in my experience. You can get there, but there are menus after menu to wade through and for me it was tedious. Can sum it up in that the KPA is ALL about the profile - there are some great ones, but there are also some not so great ones. I let my ears decide. The AXE to me is more about tweaking. There are some great tweakers (watch Mark Day vids for instance), and some not so great (me). I was never able to tweak my AXE to the tone nirvana I have achieved with some of my favorite profiles. I realize this is simply because I am at best an average tweaker and guys like Andy at TAF and MBritt have golden ears and serious profiling skills. But both units can get you there - it's just what road do you choose to take.