In my experience its a whole lot more useful to compare based purely on sound quality. There's really only two technical or objective things I pay any attention to at all: cartridge output, and speaker sensitivity. But then I have over the years pretty much come to the conclusion there are no solid state (or digital) anything's that do it for me. So time being short I skip right past them now. Sorry. Works for me.
Until you find what works for you I suggest you focus solely on sound quality and ignore as much as possible all the technical blather. Because it may be you find the sound you seek is all tubes. Or all SS. Or some of each. But if you go around asking people, forget it. The way you asked the question I could find you half a dozen SS amps that have deeper more tubey sound than an other half a dozen tube amps- and vice versa.
Oh and the "let each do their job"- what a load of horse hockey!
Until you find what works for you I suggest you focus solely on sound quality and ignore as much as possible all the technical blather. Because it may be you find the sound you seek is all tubes. Or all SS. Or some of each. But if you go around asking people, forget it. The way you asked the question I could find you half a dozen SS amps that have deeper more tubey sound than an other half a dozen tube amps- and vice versa.
Oh and the "let each do their job"- what a load of horse hockey!