Which one is the best INTEGRATED!!

Interesting that you used the word "best". My best is probably different to your best. At his price point, I don't think there is a "best" integrated. Just what suits you. They all have slightly different sound and different capabilities in terms of  connectives, Dac integration, AV bypass, balanced and unbalanced inputs, ability to drive low Independence. 

Listen to as many as you can and let you ears be the judge. I am biased of course - as an owner of the Diablo 300 with added Dac option. However, I do one more to be added to you audition list:

https://www.analogdomain.eu/index.php?option=com_content&view=article&id=29&Itemid=30

Reviews:

http://www.hifiplus.com/articles/analog-domain-the-isis-m75d-integrated-amplifier/

http://www.monoandstereo.com/2014/11/analog-domain-isis-integrated-amplifier_30.html

Monoandstereo.com has both the Analog ISIS and Diablo 300 reviews and the author prefers the ISIS even though Diablo has won heaps of rewards.  Just goes to show everyone is different.

The best integrated is, of course, the one I mentioned.

I prefer the one is Class A integrated amp.

The Belles Virtuoso Integrated. About to be released in March. Cost is at $6500.00. David Belles is a rare genius in high end audio. You will be hard pressed to find any integrated on planet earth at $20K or below that even comes close to Belles. The richest, most musical solid state designs currently in the U.S.A. Will get you closer to the magical quality of 
tubes without the maintenance of tubes more than any other solid state amp. The quality of parts are rare to find anywhere in his designs and his phono boards are absurdly state of the art and sound so good you will never even think about an outboard phono preamp. I recently sold my latest audio system and will be purchasing the Virtuoso this March and will match it up with speakers such as certain SE models from Tekton or the D9 from Spendor, but I am leaning heavily towards Spendor given their reputation and sound quality during the past 40+ years. The D9 is very neutral and sound is towards the lean side and matches up very well with gear on the warm side which Belles is known for. 

Check out the Belles Virtuoso on their site at www.powermodules.com 
Very powerful unit putting out over 200 watts per side into 8 ohms.
American made to the highest standards.