Darts, spiders, or toads? Opinions?

[NiteFox]

Spiders seem to be the way to go for lower levels so far. Spammable, negligible mana cost, and you're flinging clay pots of spiders into your enemies. You cannot argue with that, it's impossible.

Damage output seems low, especially considering the alternatives (Toads and Bats, especially Firebats), but the advantages far outstrip that downside.

Besides, spiders.