Personally I think that the Mind branch is much more useful than the Might branch (with a couple of exceptions, obviously. I suppose if you are playing a Warrior than the Warrior-exclusive Might abilities make it more worthwhile.)
Things like Learning, Inquisition, and Trophies are great skills! And Scouting is easily worth having one point in (although I think any more than one is simply a waste). The great thing about the Paladin is that he gets the Runic Stone skill with 3 uses, which turns 10 Minds runes (the Paladin gets a lot of them) into 10 Might AND 10 Magic runes, and it can be used 3 times. It's huge.
I think that Holy Anger (Paladin-only, I think) and Keeper of Light or whatever (+xp and gold versus undead and demons) are also really useful at certain points in the game.
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