Round table

Scouting is the most useless.
I never took Intelligence, unless it was offered along with something from the seafaring series or own eye.
Resistance sometimes helps in the finale, but I only take it in the cases mentioned above.
Archery is generally only needed for Castle and Rampart. A rather debatable skill for a single stack.
Tactics is OP and I always take Wisdom.

1) they aren't always found and there isn't always room for them; in early stages and in FB - it can prove to be extremely useful. Better than nothing.
2) I thought so too, but remember how many Griffin Conservatorys and other perks turned out to be just outside the visibility range, especially when searching for something in treasures and not finding it. Better than nothing.
3) Well, maybe you always have Knowledge 20+... one of the most useful, especially for control.
4) Yes
5) And Tower. Taking Griffin Conservatory with it or without it are different things.
6) Tactics can be decisive in early and difficult battles, sometimes in FB, but in Boxes... 14% according to Murphy's laws turns into 100 when there is no Wisdom or book.

Dirty_Player, on Jebus Cross (the dispute was originally about it) -- practically only for boxes. In the late game, the value of Wisdom certainly increases - except that it doesn't provide anything that isn't already in Books/scrolls.