I'm less impressed with Rhodians, for all that they have armour, they still seem to suffer badly under missile fire from other slingers. I don't know if they fight in a tighter formation than other slingers, which might make them more vulnerable, but after a few battles with them losing a lot of men, I went back to Sphendenotai and Iaosatae.

I do agree Balearics are the best, though. Great for annihilating enemy skirmishers/missile troops and then turning their focus on enemy FMs.

I don't rate any archers, simply because lacking the AP attribute that slingers have makes them useless against anyone with armour. I've watched the AI expend all it's ammo and kill a handful of my main strength. I tend to focus my missiles on lightly- or unarmoured troops anyway, but it's nice to be able to get my slingers behind the enemy's line infantry and decimate them with my remaining ammo.

Only reason I use archers is for variety and historicity in my Pergamon game; all-slinger would make it too easy.