Either or both, likely. Seriously, I think the Axe FX sounds great but I don't think it's much, if any better than the 11R for basic amp tones. I do prefer the effects in the Axe, though.

But is the Axe II better than JamUp? Well, here's a post I made on the Positive Grid Users Facebook page :

This past weekend I performed my solo show, along with another solo act, alternating sets. Pascal, the other musician, had an Axe-FX II and sounded great, but three times over the course of our two-night engagement, he sincerely complimented me on my sound.

Genuinely curious on the first night, he asked what I was using and was astonished when I showed him my iPads running JamUp. I think we have another convert to the Positive Grid camp.