The Energon Pub

The most badass soldiers of the Battletech universe vs the most badass of the Dune universe.

So in two fights (with equal numbers):

1. Hand to hand (no weapons or armor whatsoever).

2. In full battlegear available to their respective factions.

this is a tough one, however the elementals are genetically enhanced, so i'll go with the Elementals

Sardaukar slips a bribe to one of the giant sand worms and ensures the Elementals' demise. Sardaukar wins.