Chuck,
After smoothing out a few of the 'bumps', what's happening here really is 'elmering'. May not be exactly what the most common answer might be, or even close to the 'common' thoughts about it, but it's still 'helping'.
The title of this thread has a sort of clue in it, it's that "all things being equal" part. They aren't 'equal' to start with, the types of amplification have specific purposes, better for specific modes, which is their whole reason for being. If one particular class of amplifier would work really well for all modes, there wouldn't be very many different classes to start with. Would there? If the question had been "Can a class 'C' amplifier work -almost- as well as a class 'AB', the answer would be, "Yes, almost.". Then the question would be just how much is that 'almost'? And that would depend on the person doing the listening. Not a very good answer huh? Nope, sort of 'wormy', lots of 'wiggle' room, no definite absolute answer. Oh well, wish it weren't true, sorry 'bout that.
It's the nature of everything "general", there are -always- exceptions...
- 'Doc
PS - I agree, making fun of people isn't gonna do much good... in most cases.