Clancy Brown was way more impactfull then Lambert.
The amount of Highlander quotes you still hear to this day are mostly those of The kurgan.
Connery and Brown carried that movie. Lambert just went along for the ride.
Remember our agreement, Murdoch. The boy... Is mine.
The way how Clancy just spits out these one liners, in that growling voice. It's bloody fantastic. Cavill as mcloud is good and all, but it's all about who they cast for the Kurgan and Ramirez. And that they don't fuck the story up too much.