dgburns It is a favorite of mine, too
To the OP: if I was a new user looking for the sounds you mention, I would probably avoid option paralysis by saving my own edits of Kemper Rig Pack Marshall and Fender Liquid Profiles, using edits of Kemper Factory effects presets. And, there are at least a few Polytone rigs in The Rig Exchange.
Ah yeah that was a different question I had... I tried some liquid profiles but it says I need to update my profiler, but I have the latest update. How come?