Kurz can do FM too.
More than 6 operators, too, if needed. However it's a bit fiddly, admittedly. On the other hand, there WAS a mention of implementing a dedicated FM operator DSP block... it might come in one of future OS updates...
And... about VA-1... did you check out those "Moose Attack!" demos? I got the soundset and it's BRIMMING! I can only say, VA-1 can get you almost anywhere. You can PWM any sample if you want, you can FM them too (granted Fusion can do that too, as well as OASYS and Kronos), however you can freely route what goes where and why (MS-20? Or even more perverse?). It's a powerhouse.
The PWMod alg is non-anti aliased on PC3 though.
The PC3 does have quite a bit more logical interface than Kronos though IMO. The next K if it follows the footsteps could be a real (kronos) killer.
If anyone has some engine demos of what kronos can do post them here.... Also, HOW FAST is the LFO? That has not been settled yet...
Can it do phase modulation too BTW?