I can only describe my armies as... a mess. I tend to recruit what I can afford and make the best of it. I have a strange magnetism to spear units. I usually click to rectuit say FMAA, then picture my kindgom falling apart around me with the FMAA being ridden down by the enemy cavalry...

From my (extremely limited SP) perspective - I know that MP players see it very differently with good reason - I've never seen much value in swords. As flankers they're ok but on the whole, in that role, I prefer suicidal axe wielding loons. Spear are a solid backbone though and are good at sitting there dying slowly while you bring your other units onto the enemy's rear and flanks. Yes I'd have prefer it if spears in MTW had been more like YS in STW but there it is. Also artillery don't feature in my armies, neither do mercenaries. Apart from that there's no system to speak of.