You can get bad units in every variation. I would prefer electric. Less chance of a hydraulic oil mess. No big lines running back through the trailer just wires. And the big one. If something goes wrong, I have half a chance of fixing it. If your one electric motor on the hydraulics fails, you are stuck. If one of the 6 electric motors fail, there is another one on the opposite side. Run one side up, remove the motor and install it on the other side. Run that one up and you are on your way.
If I had my way I would prefer the old front landing gear and back stabilizers. Much less to go wrong without all the fancy self leveling electronics.