Difficult to directly compare as the Orion spacecraft is designed for a lunar orbit mission, with a 21-day mission time, whereas Crew Dragon is a low Earth orbi

Difficult to directly compare as the Orion spacecraft is designed for a lunar orbit mission, with a 21-day mission time, whereas Crew Dragon is a low Earth orbit capsule not really intended for maneuvers aside from "go up, go down." So you'd have to look at lifting capacity and then factor in your best guess as to how SpaceX would approach designing a TLI (trans lunar injection) capable spacecraft. In many ways, Orion is Apollo Block III: what we would have developed if the Apollo program had continued to be funded. For better or worse.