"Worst" Unit

[Spoofa]

Pantodapoi are fodder and garrison units, so that figures.
Galatian kludidon OTOH are awesome light infantry, not useless at all.

Toxotai are teh suck. Their only use (wich slingers can't fulfill) is that you can put them on city walls to torch siege engines. Since they're the crappiest archer unit in range and power, you should only bother them if no regional archers are available.
However considering they're dirt cheap they make good garrisons that also have some use in siege battles.

well, personally i would have to disagree with you there, in most of my Greek armies where they are readily available I use them to counter slingers, since i am strict about not using slingers unless its accensi or another weak version of slingers, and they are pretty effective at this job (im talking about the toxotai of course, not pantodapoi