RTW which is the hardest faction to win with ?

[The_White_Knight]

I'd say Numidia as well. Poor provinces, hedged in by more powerful enemy, limited unit roster... If I wore a hat, I would take it off to the person who wins a long VH/VH Numidia campaign.

Antagonist

I'd do the same. I wouldn't believe anybody would be able to stand the boringness Numidia offers through a full campaign .