For me it is athletics. The reason why is when I am taking expertise it is generally on an 8 strength Rogue and without it I can't climb well, which is like one of the main jobs of a Rogue. Gives some good grappling uses when necessary as well (although hindered a bit by the low strength).
Others I like but not nearly as often are Stealth, Deception, Persuasion, Investigation. On a Ranger I like Perception.
How about you?
Others I like but not nearly as often are Stealth, Deception, Persuasion, Investigation. On a Ranger I like Perception.
How about you?