To each their own, but until 2.0 has a chance to be compared to the others we still really don't know. Don't trust YouTube videos or influencers. The reason Michael Britt profiles typically sound the best in a mix is because he is also a touring musician.
I will say, for amp tones it's a wash between all of the companies at this point. I've heard MK1 Kemper profiles that demolish QC and Helix Stadium, and I've also heard the exact opposite. How good the Kemper sounds depends so much on the user, what mic's they used, how they placed them, what preamps were used, etc. People capturing with a cheap $100 audio interface aren't going to produce "pro" level profiles. QC and Helix come with models so they have other avenues.
For effects, I'm sorry - Kemper leads by a considerable amount. Helix is second, QC is a far third.