How do I set which version of A RAW + JPG set is the Album version on import
Option at the very end of the bottom section of the import dialog. See attached screen capture.
in fact how do I even see what the versions are for an image?
Look for the "tabs" projecting from the right of thumbs for version sets. Click on the tabs to see thumb for each version. Note the facility to assign to placeholders on the toolbar that pops up when you point at a tab.
(Lack of a version detection Wizard is a major one for me too, but that has been discussed elsewhere!)
Yes, and yes
How do I rotate the thumbnail for cameras that don't automatically embed this info
For jpegs point at the little grey arrow below the thumb and click on one of the rotation symbols on the bar that pops up. This doesn't work for raw for some reason. Best way I can find for this is to run Quick Rotate Left (or Right) from the batcher. It must be QUICK rotate!
Apart from the rotation of raws it is not, with a bit of experimentation, harder than IDI, but much is very different.