Quote:
Are Polybian units worse than Camillan?
Short answer: No.
Longer answer: It's a myth arisen from the fact that certain Camillan units are better at certain specific tasks than their later counterparts. Triarii and Equites Romani are slightly worse overall after the reforms. Leves and Rorarii (IIRC) disappear. So much for the worse part.
However, your other units gain increased AoR. Hastati and Principes gain additional armour and become better at assault tasks. With Velites, you get skirmishers that are more reliable than Leves, better armoured and also cooler looking.
Your army as a whole loses some anti-cavalry potential but gains significantly more anti-infantry power. Armour increases on average (Skirmishers, Hastati, Principes), despite Triarii and Equites Romani losing one or two points.