My own approach is to heavily prioritize the primary stat of each class (STR/DEX/INT), as it determines chance to hit for weapons, as well as chance to apply status effects (which are very important in D:OS).
Most of my characters march towards max in their stat before doing much of anything else (maybe a point of con or speed here or there). Exceptions are I put a few extra early points in CON for warriors to help them survive the Glass Cannon transition, and a couple of points in perception for rangers to help them fight effectively at range (with the added bonus of trap/secret scouting).
I wouldn't bother with the talent granting immunity to fear, as you get this effect from a character with strong leadership. Likewise, don't worry too much about specific avoidance of other status effects, as you get excellent general mitigation from body building and willpower (both excellent abilities).
Remember that in D:OS once you finish the story, that save file is done, so you're not building a team for 2016, your'e out to enjoy the game and experiment
