Hmmm... I think I'm gonna flog the QC and Helix. I love the Helix, but it is time. I've more or less outgrown it. QC is cool, and I really quite like the UX and the sounds, and I like running the plugins on it, and the form factor is cool .. sat on the desktop just doing its thing. But tbh..... if I use 20% of the Axe3 30% of the time... then the QC I probably use 70% of it, but only 2% of the time.
I generally find myself going to the Axe FX III any time I want to use a modeller; despite some of the cooler and "better" experience things that the others offer. I just genuinely feel the Axe FX III sounds the best; and ultimately that is the MOST important thing.