Re: Hardest Faction - Economically?
I think it really depends on what are your approach and preferences, basically in vanilla TATW and MOS the evil factions have a worst economy overall (due to lower quality governors, in particular with trading skills) except Rhun and Harad, as both can develop a strong economy (Rhun has plenty of gold mines and the possibility to have intense sea trade within their biggest cities, while Harad has the strongest position ever), but I concur that Isengard (especially in MOS, due to less regions) is probably the hardest faction to build up economically or at least it was always so for me; at the same time Dunland in MOS is a walk in the park (also because their units are very cheap)
If I have to make a rank, from the hardest: Isengard, Mordor, OMM and OOG, the other three (Harad, Rhun and Dunland) are not hard at all.
For the good factions it really depends on the version too, but probably yes, the Silvans and Lorien in MOS both have a weaker economy compared to vanilla TATW, but honestly with the elves, using the best troops in ME, you don't feel you are poor, I mean with them you really need half of the troops compared to human or orc factions, so usually economy is more than enough (at least to turtle properly). Eriador too has not the best economy, but you have a strong position and two powerful allies and honestly if you know how to grow your cities it's not that hard in the end.
my rank: Lorien and Silvans (in MOS), Eriador and Dwarves (due to the split kingdom), Dale too can be tricky if you spread your kingdom too much in the begenning, all the rest are pretty easy.