I do believe the heal is absolutely the same. The Reinforced versions have more hull, and I believe have shields (the normal ones don't I think). Aside from that, the healing you gain from em is unchanged.
But the Reinforced ones are still better, just because they can take a hit or two more, or at the very least, soak up a few torpedoes from a torp spread or some shots from CSV or FAW, etc.
They will still die really easily, just because they stay close to ships, so anything exploding near ships, is pretty much guaranteed to kill the drones.
Still, four of those suckers on a ship is pretty significant.