I've been making YouTube videos for several years now. I started with a Sennheiser ME 2 omni-directional lavalier, it was good but somehow there was too much RF in my room and I could never get rid of it. I "upgraded" to using a shotgun that is about 7 inches away from my mouth. The first shotgun microphone was the Rode VideoMic Pro and it was "okay sounding", but picked up a lot of room noise. Then I upgraded to the NTG2 and noticed immediately the better noise isolation, and then upgraded to the NTG5 (gave better clarity and better noise isolation), and recently went to the NTG3 and fell in LOVE with the nice bottom end of the NTG3.
There are a lot of YouTube videos saying that the MKH 416 is the holy grail of shotgun microphones. HOWEVER for my use of indoor video creations, in spare bedroom with no sound treatment... would upgrading to the MKH 416 make a difference?
NOTE: I realize that most people watching YouTube videos are probably on a cell phone or Laptop, so they might not hear the difference... But I'm still curious if the MKH 416 would sound better than the NTG3 for use in an "untreated spare bedroom" studio.