[Edratman]

For example, the only recruits I left Man are longbows, wardens and knights. So Man armies are comprised of nothing but first class troops and the few good independents available.

Add in the extra gold and resources and Man spits out nothing but good sized armies with nothing but good troops. The better starting armies allows them to expand every turn, unless it is dumb enough to tackle a major knight indy province (which it is). Thus more gold and resources again.

All in all, the same formula a human player uses without the complex strategy and research depth a good player uses.