What matters is what is in the client itself, that determines which implementation should be considered the "best" at any one time.
I've described what I'd consider dishonest tactics of 'achieving this'. Let's see if BU will do this in the future.
All of the code is properly accredited.
Where?
It almost seems like you are implying intellectual dishonesty on the side of the Bitcoin Unlimited team. Which I could say even borders on being disrespectful, since it does seem like you do not apply these same standards to Core. It is good to be skeptical though, the code is out there for everyone to critique. I am sure that if it was flawed the small blockists camp would not hesitate in letting everyone know that is the case.
This team is not very experienced (nothing special there). I'm not implying dishonesty, I want a 3rd party review. It's as simple as that.
However, this is all off-topic here. This thread is about Classic, not BU.