Nord stage 4 or the Yamaha montage.
There really is no comparison.
They both sound amazing, but I believe the Nord has more power.
Yamaha has more sounds and a nice glue to all of the sounds when mix together.
The Yamaha montage has a bit of menu diving, where the Nord stage 4. It's ready to go. Again they both sound amazing. So I made this video. to showcase them both
https://www.zzounds.com/a--3989212/it...
https://www.zzounds.com/a--3989212/it...