...As members of your fort
Human:
Attributes overall worse and not excelling than any other race, though larger for combat.
Not innately alcohol-dependent, but will eat food and drink water.
I guess you'd use them as haulers or fighters until they die.
Goblin:
Awful creativity, intuition and sociopathic empathy, but perfect memory and dwarven strength with better endurance, willpower and social awareness.
Not eating or drinking seems very nice, unless one is driven to drink from violence or a vamping would be desired. Sprinkling a fort with few relatively peaceful goblins seems somewhat desirable (for miners, perhaps), but they're overall worse than dwarves.
Dwarves:
Bad agility, but nice strength, creativity, memory, analytical ability with better spatial sense and focus.
Alcohol-dependent, but not a great difference unless one is vamping the fort.
Cave adaptation can weaken military sent on surface, and give unhappy thoughts.
Only civilization that gets strange moods or trances.
Elves:
Nice agility, intuition, spatial sense, empathy with better kinesthetic sense, great linguistic ability and perfect memory...
And also friends to woodland animals,
not alcohol-dependent if impatient.
and don't trample grass.
Between dwarves and elves the stats don't seem that tilted outside of memory-dependent jobs, but always-on are pretty biased in favour of elves. Goblins and humans mostly fall by the wayside.
Of course, strange moods of dwarves give them unparalleled crafting ability for all but long-lasting forts, and even there those provide unique powerful advantages not otherwise obtainable. Sending out embark teams of 7 with two migrant waves makes suddenly far more sense.
It might be harder to get a breeding pair of elves or goblins than humans or dwarves due immortality, granted - but it seems like they would quite well overtake dwarves on a lot of jobs and goblins on almost all jobs, and are just plain best for vampire castles.
Now....are there any other species-specific things that throw off this assessment? Some animal men who can have an unique role?