The only HW EX primal fights I liked were Thordain and Niddhog. But even then I still haven't cleared Nidhog because... I dunno... the gear is just crappy. None of the EX primal weapons from HW really interested me. The stats were meh... they didn't look very cool... I dunno. I just wasn't really interested.

The only real thing I liked from those two fights was the music too. =/