Lattimore translation is best

"SING, goddess, the anger of Peleus’ son Achilleus

and its devastation, which put pains thousandfold upon the Achaians,

hurled in their multitudes to the house of Hades strong souls

of heroes, but gave their bodies to be the delicate feasting

of dogs, of all birds, and the will of Zeus was accomplished

since that time when first there stood in division of conflict

Atreus’ son the lord of men and brilliant Achilleus..."