Virtual Dynamics - David vs Nite II vs Master

I tried the David series - digital connect, XLR IC's, SC's and PC on my CDP. I liked them but decided to get the Nite II instead - more $ must be better? I still like the Nite II's more than some previous brands I tried, just not sure if I like them more than the David's - however, it was a few months between the David and the Nite II (using Transparent Ultra XL's) so I am going by memory. I'm considering the Master series. Has anyone compared the 3 levels in the same set-up within a reasonable time frame? I read that Master is a big jump from Nite, but not sure if they meant Nite or Nite II. Thanks for all any feedback. Jim