Is it not possible to state an opinion without 75% of the post being caveats?No, IMO there are way too many variables involved to be able to make any generalizations that would be meaningful and useful, the variables including even the recordings as Mapman indicated. And whether the goal is to make the (sonically) best recordings sound their best, or to make run-of-the-mill recordings sound as good as possible.
FWIW, though, since you are asking for experiences, my system has evolved over the years such that I now use a solid state preamp for both analog and digital sources, and a tube power amp. I've never used an integrated amp.
Regards,
-- Al