I have to say Kurt will always get my vote when it comes to building engines, not because we're married or in business together, but because he's IMO one of the best.
That said, if something were to happen to Kurt (cut his arms off, death, etc.) & he couldn't build the engine, I would probably consider VW Paradise over the others that are listed & here's why .......... My dream engine will ALWAYS be high performance turbo charged street motor. Race cars nice but you can't drive them when ever & where ever you want. I don't like being told what to do or how to do it -if I had a high strung race engine it would certainly limit my distance driving. I've met all 4 of the builders listed, & from everything I've seen, Jason at VW Paradise has the most experience with the street engines - Rodger, Shawn & Jack great as they are, are more geared to the racing performance.