But from what they have shown to us, they were really weak compared to this other characters, mainly talking about stamina and strength; their speed doesn't seem to be amazing too, like Dante's and Vergil's DTed running and attacking speed overall. I think that the only thing really powerful about Donte itself is his DT and the boosts on strength he gains from it, but it's major effects are very specific to the enemy's nature (only work with demons, and it seems related to Limbo somehow, but i don't remember if there's any good explanation about it) so it kinda bring his "Power Projection" down; different from the earlier characters that their DTs don't really affects the opponent but just boosts themselves in a major way.