From the kites mentioned I have tried pivot, core xr and north orbit.
Core XR is a stable, slowish kite with a very wide wind range, eats gusts, good low end, sheet and go. Wide sweet spot timeing wise for boosting, lofty hang time. Probably easiest jumping kite I've tried. A bit dead or soulless feel.
Naish Pivot somewhere between an allround kite and boost kite. Easy to control power with sheeting the bar, a bit less sheet and go requires some input. Less bar pressure vs xr, more reactive, faster. Way better drift, doesn't fall out of the sky. Can make kiteloops gutless or a bit wider and stronger. Super stable, can fly in lower winds too. Way more lively and fun vs core xr but not as easy boosting. Good hangtime.
North orbit, great high range, suprisingly fast, but not quite as reactive as pivot. Sits way forward in the wind window, so you need to heli loop and move it earlier/more and I think you need more skill to actually take advantage of the benefits. Easy to front stall if you don't fly it right (only tried 2020) Not at all idiot proof like the core XR. Still a really cool kite.