Bone Wars
Judging by pure numbers, Marsh "won" the Bone Wars. Both scientists made finds of immense scientific value, but while Cope discovered a total of 56 new dinosaur species, Marsh discovered 80. In the later stages of the Bone Wars, Marsh simply had more men and money at his disposal than Cope. Cope also had a much broader set of paleontological interests, while Marsh almost exclusively pursued fossilized reptiles and mammals.