I've never kept a spearer, but have seen plenty vids of em. I prefer smasher. As twisted as it may seem, for the brutality of it. Seeing a smasher whacking at its meal amuses me...whereas it seems like with a spearer, the attack is over in a flash. I've been able to keep a couple damsels with mine for a few weeks now, I doubt they would've lasted that long with a spearer.