Sorry about answering a question with a question but which one is "best" will be the one that sounds best to you in your listening environment.

I have the ProLogue Two and it is a great integrated at the $1500 pricepoint. Depending on your preferences and sonic priorities, it may be more musically satisfying than any integrated upwards of double the price.

I have no experience with Bluenote products but Triangle's Esprit line are very efficient speakers that are easy to drive and should be a very good match with the 40-watt ProLogue Two.

Personally, I would go out and try to listen to these components before dropping a few thousand on it. Good luck!

I would look into the BizzyB's TAD-60. Its got 60 watts and its better looking and is cheaper than the Prima Luna. Have yet to find one bad review....or one user who chooses the PM over the TADs