I agree what you said about rogues. I have a bit more dexity then strength/focus. With a rejuv, I'd set my focus to 30. My vitality is still highest.
For ranger, I didn't put many points into strength. I have some dex, good health, a lot of focus. But my ranger was built for battles (as in for bolas

Mages... It's funny you never mentioned ice ability. I believe there are mobs (Fire mobs in catacombs for example) that can't be killed with fire bolts. I might be wrong, but I remember some of our mages run away from those mobs.

As for druids, I've been running around without a rejuv for 83 lvls.

On a side note, what classes have you actually played and how high lvl are they?