I do find it more of a challenge. I think that's why I like it against the AI.
I'm playing IF against Abyssia, Atlantis, Ctis, Arco, and Pythium right now, and that is making for a very challenging game. I just found sages, though, so I will start to have some research.
Of course, I don't yet have any decent mages
I like nations with one or two central strengths but surrounding weaknesses that must be compensated for.