Sorry capri green, i've been out on the road this afternoon. From what I can see by looking at a caliper we have on the shelf here, the actual sealing of the hose comes from the small tapered edge around the outside of the the hose end (and the fine thread itself helps seal). Therefore it shouldn't technically matter which hose you fit, I would suggest fitting a matching pair just to ensure you don't get a brake imbalance.
Tis a shame we only had one ATE hose left though.