I've finished with the warp calcs
. It's easier to link to a .txt file than use the CODE method of posting tables, and there are several tables.
Basically, assuming a fusion powered warp BOP that uses basically the same amount of power as the Ent-D for the same warp factor, and that is limited to the fuel she can carry, Scenario 4 is probably the winner, though Scenario 3 may also, depending.
But if she has high efficiency ram scoops and an efficient way of converting light hydrogen to heavy hydrogen --beta decay via quantum anti-xeno effect anyone?-- then Scenario 2.... possibly Scenario 1, but probably not.