Most and Least Favorite Spearheads you've played? And why?

Most: Carrion Retainers - I just found them to be incredibly fun, balancing the noble deed points and risking your heroes to accumulate them, while still focusing on the objectives.

Least: Snarlpack Huntaz - They hit like a cushion, die to a stiff breeze, and their movement shenanigans don't account for much if the enemy has even a single ranged unit. Found them truly miserable to play, which is a shame as their models are awesome.

What are yours and why?