Not played those exact ones.
Played:
CL100EQ (own one)
Deliverance 60
VH4
Herbert
All good amps, but if put a gun to my head and made me choose between the brands...well, who am I kidding, you dont need the gun: the fryettes kill the diezels IMO.
They are very differently voiced though (all 4), and the 'family sound', such as I've been able to discern it from 2 amps from each brand is also very different.
The diezels are much wetter, more saturated and compressed, more 'polished' right out of the cab, but then some complain they sound 'processed' rather than polished, and I can certainly see where they're coming from there.
The VHTs are more raw, aggressive, tighter, punchy, transparent (by which I mean they reveal your playing better, for better or worse, and they allow greater differentiation between guitars) and all round more in your face, but you may find them in need of taming or saturating. They seem to be an aquired taste. I loved them instantly, as do many, but some dont take to them very well. Often that has a lot to do with the fact that with a VHT, some people suddenly go 'THERE THE NOTES ARE!' and merrily get on with loving the hell out of their clarity, and some people go 'WHERE DID THE MISTAKES COME FROM!??!?!' and dismally proceed to hate the clarity. A lot of thats to do with the masses of gain, but lack of saturation.