I voted for the TNG episodes although they didn't real sell the Borg either. The late 80's production values made them look somewhat camp IMO. Still when you first hear about them they seem like a force to be reckoned with and of course BOBW is a star trek masterpiece.
But then they had go and ruin it all be doing something stupid like turning the Borg into space Zombie/Vampires
I guess you could say that the Borg have never really worked for me.