Actually, the Sicilians are not that easy if you actually don't use pavisiers and take advantage of the fact that the only reason they are there is because the faction subs for Genoese Confed in Late.

The Brits are easy.

longbows in early is good. Norman knights are also powerful although not quite as good as destriders. muntators are jineetes and quite nice.

the claymores also pack a punch though the clansmen aren't as cost effective any more.

fyrdmen are fairly solid still.