Sure, it's hard. In your list, you forgot the E visa, which is extremely relevant to the HN crowd. Assuming you have a startup that is starting to take off in Europe, you will be able to move to the US to establish its US branch. It makes complete business sense (for a successful startup to expand to the US), and the visa is very easy to get (provided you use an experienced lawyer).

The E visa may not work for you today, but two years from now, who knows where your European startup will be.