i don't there is a bad unit, all the bad units have their roll on the battlefield and as a player you must lear their roll, i mean youre not going to use a levy spearman unit to fill the gap a elite heavy unit it is going to cover ie. youre not going to use pantadopoi to fill in the gap of thorakitai argaryspidai, i mean everyone talks about pantadopoi and toxotai being bad units, well i dont use them often but pantadopoi can make good reserves or cannon fodder, so in my humble opinion there it is no bad unit im a not an expert myself but i always try to give each unit its roll in the battlefield, haha please don't flame me!...