Planar vs Dynamics will be different. In general, good planars will have that bass advantage, and struggle with the mids and treble against good dynamics. On soundstage, planars have great separation in general. But good dynamics, to me, have more natural soundstage. Keep in mind that the Verum is still a planar sound.
Compared to HD650, think of the Verum like the HD600. It is more neutral, not laid-back at all. Great extension from bottom all the way to the top. This is an engaging but flowing sound. HD600/650 have TOTL mids and treble tonality. The Verum probably is the planar that I tried that get the closest. It has that same smooth body. The Verum has better macro-dynamics and much better bass than the HD600/650 though. Makes it a better listen for hard rock.
The Verum also reminds me of my past HE-500. The HE-500 has a lush midrange tonality that I loved, but it came at the cost of detail. The Verum sounds clear, doesn't sacrifice detail, and still manage to come out flowing. The Verum's bass is also layered and extends lower, while the HE-500 sounded one-note. This is Audeze level bass. Reminds me of the LCD-X, which is probably the best bass I've tried. But this dont have the X"s wonky treble and sounds more flowing in the mids.
I haven't tried the HEXv2 unfortunately. The HEXv1 has a good warm-ish laid-back tonality. The kind that you can listen for hours and hours. But it is not a technical headphone. It sounds soft, diffused, and doesn't do details well. Macro-dynamics also suffer. I got bored of it pretty quickly, just like the HE1000v1. The Verum is not a warm laid-back phone. It is focused, grounded, and engaging, yet I can also listen to it for hours. It has better body, transients, leading attacks, and dynamics. Bass is far apart in both impact and quality. However, the HEXv1 feels more open and airy. I haven't even touched on price difference and build quality yet. The HEXv1 was priced at around $1700. The Verum is $350. The Verum is much better-built and sturdier. Even the cable can put HEXv1 cable to shame.
There are quite a few variations of the LCD2 and 3. Old LCD 2 had that delicious lower mid, oh God. But that was a heavily colored flavored mid and geared towards male vocal. This is neutral. So can't compare really. I also shared my thought against the 2C above. I think of the Verum as a neutral 2C. The Verum is a more versatile can. Also, better detail and clarity.
We can compare the Verum point-by-point with other cans. But there is something about the Verum in totality that just sounds good to me. I have been listening to it a lot lately. Just going through all my playlist. This is a big sound at a small price.