Profile is very similar. VC has a bit more punch. VO is super open. If I want super soundstage then I reach for VO. If I want to zone out I reach for VC.
AC is also a great option. Not as crazy detailed as VC but has more punch. Damping on AC is better in my opinion.
Caldera is like a mix of all with a extra layer of realism and punch mixed in. IMO their best headphone overall, but it does have slight weaknesses in mega detail and bass accuracy. But I am splitting hairs.
All are great, it just depends what you are going for. Can't really go wrong.
Amps and wood choice can also change how they sound. Also, source quality matters (duh)
Tubes and ZMF are
Clarity and Soundstage -- insert horizontal graph here -- Slam and Power
VC - VO - AO - AC - Caldera
Again, splitting hairs, as they all do well, but that may help you. Others may have different findings.