Really the only person that can make that decision is you. When I went to get my first controller and ended up with the MC6000 I had a list (before ever looking at specific hardware) of the features I felt I absolutely needed, what I would love to have and what I could easily do without. Then I started looking at the hardware and pretty much ended up with the Denon. Being a very long time Denon user, I knew in advance that I’d get technologically solid gear built like a tank and built to last.
And I wasn’t disappointed.
My advice to you would be to take both the MC3000 and N4 feature lists and then look at what one has that the other doesn’t. Then judge which of the features you really don’t want to be without and presto!
Good luck with your choice and greetinx,
C.