I recommend the VBM Domobar Super, only because I was tossing up between it and the Minore II and decided to go with the VBM :D Im sure anyone would be happy with either, but this is a few things I thought about:
The Minore II has a lot packed into its little shell, and on top of the whiz bang electronics packed into the shell with all the heat and moisture, when you upen it, it is (apparently) fairly cramped and difficult to work on, whereas the VBM has quite a reputation for having high quality highly accessible innards.
As for the ECM v VBM, they are fairly similar, and I was told the VBM has marginally higher quality build, and it has a much bigger boiler and reservoir etc.
Those 2 arguments basically made my mind up about which machine to get. Once your at this level Im pretty sure the machines capabilities are pretty far up there, by which I mean shot quality and consistency from machine to machine (all other things equal) wouldnt vary a lot. I mean, you often hear of people upgrading from the Midrange category (Silvias and such), but not many people seem to want to upgrade their Giotto or Domobar Super...