Neither have been updated in a year - personally I don’t think either is a particularly good purchase at this point in time given the benefits of more recent processors, SSD and the price drops of the retina machines.
If you want Ableton and Traktor simultaneously, go big. The more CPU and RAM in that bad boy the better.
My i5 Lenovo eats Traktor alive with two remix decks running, keylock and spamming FX though, and I’m sure I could comfortably run Ableton in the background also but I’ve never tried it. This is all on the shoddy crap that is Windows 8, so OS X on similar spec should have no problem.
Got the 15" i7 quad core today. My mistake about the Quad core i5. Victim of false advertising by some of the stores. Plus here in India, the Retinas are just way too expensive.
Thanks for all the replies. Appreciate it
Is there a tutorial for mapping an Android Tablet to work as a mixer ? (Touch OSC). No Xone K2, I would’ve been sorted otherwise.