I added emphasis on the last part of your definition, which would eliminate just about any amp from contention. No amp can be all things to all people.
If your definition of the holy grail is THE definition, and I’m part of ‘absolutely anyone else’, the Mk V, as cool as it is, doesn’t qualify. I had a 100 Watt version, it was very cool, I loved it, but not my holy grail. So your definition kind of breaks down with just one person, and I’m sure we could line up as many people as there are amp models who’d say their favorite amp was the better choice.
However, the Mark V series are great amps, and certainly can be your holy grail!
