I have had a consistently horrendous time on the campaign map with the Spanish/Iberians, whether I'm the Gauls, the Julii, the Scipii, the Carthaginians, etc etc. They very often don't even give me the option to ally with them, they revoke Trade Rights at whimsical intervals, they attack my allies but never me, they seek out and attack lone ships. In battles I rarely have trouble with them, but for the rest of the game they're the foulest pillocks imaginable.

But I'm sure most of them are nice people