All you're going to get is stirred up fanboys slinging subjective opinions on their preferred platform, when you obviously have a use case already defined that one clearly fits. You might as well be asking for comparisons between a Helix, a Haas mill, and a Jetta.Let me clarify. I've been a tube amp guy for a long time, but when I got a Vetta in 2002 So I've been a Line guy for a long time. I loved it and knew it didn't have the dynamics of a tube amp, but I was like a kid in a candy store with designing new amp sounds and the effects were killer. I sold it and got into tube amps which was way more expensive and never satisfied with any of them.
Then in 2019 I got a Headrush Pedalboard and fell back in love with modeling, but then checked the Line 6 Variax Shuriken and got one and it really is my favorite guitar just the way it plays unplugged, but the reason I got is because I play modern Country and if you have seen some of the bands like Luke Combs there will be 3 guitar players and a banjo player. I also love Keith Urban and he has many songs with a Deering 6 string banjo. That's why I got the Shuriken because it has the banjo in it and a Les Paul, Tele and Strat. Oh yeah could also create a 6 string mandolin with this guitar.
Then I'm watching the Stevic video I posted above with the Shuriken and he's playing thru a Helix.
Now I might keep the Headrush cause it's not really expensive lol, but now I want a Helix so I can change from a banjo to an acoustic to and electric with different amps, cabs and effects on the fly.
That's why I'm leaning Helix, but was just wanting input as to why some of you like amps, cabs and effects in the other boards.
The only fact you will uncover is that they all sound good. From there, pick the right tool for the job. If integration with a Variax for on the fly guitar tone and tuning changes is what you want, there is only one brand that does that.