There are always “some guys” who “tested” this, that and the other software against the competition and the competition won. But the devil is in the details. Everyone has an opinion, just like they have an ______ , so the important thing is what and how they measured this difference. Do you know how they tested it? Who they were?
To my knowledge there are two things that are true for sure;
1, double-blind tests on summing buses reveal that when done correctly there is no audible difference between softwares.
2, most of the time when there is a difference it’s so small that it’s a complete waste of time to worry about it. One can spend X hours worrying about getting Nuendo to sound 0.25% better to match some other random software, or one can use those X hours to work, make money, and then use that money to buy a better microphone, mic pre, converter or whatever for recording/mixing which improves the sound 10% instead…