I have made games with just 3
Prowess - your physical stuff for combat etc but you could be big and bulky or lean and fast
Guile - your cunning and charisma
Lore - your knowledge and learning
Is my current favourite range
but loved the old FGU games with a bunch of Talents raning from -3 to +3 with stuff like Mechanical, Creative, Esthetic, etc (I think there were 8 ?) and then the actual stats which were the more usual Strength, Agility, Intelligence, etc (I think there were 8 of these too).